| Name | Party | Constituency | Notes |
| Adam Abramowicz | Law and Justice | 7 – Chełm | |
| Andrzej Adamczyk | Law and Justice | | |
| Romuald Ajchler | Social Democracy of Poland | | |
| Leszek Aleksandrzak | Democratic Left Alliance | | |
| Bartosz Arłukowicz | Social Democracy of Poland | | |
| Waldemar Andzel | Law and Justice | | |
| Iwona Arent | Law and Justice | | |
| Tadeusz Arkit | Civic Platform | | |
| Paweł Arndt | Civic Platform | | |
| Marek Ast | Law and Justice | 8 – Zielona Góra | |
| Urszula Augustyn | Civic Platform | | |
| Tadeusz Aziewicz | Civic Platform | | |
| Zbigniew Babalski | Law and Justice | | |
| Piotr Babinetz | Law and Justice | | |
| Dariusz Bąk | Law and Justice | | |
| Klaudiusz Balcerzak | Civic Platform | 8 – Zielona Góra | Replaced Marek Cebula on 14 December 2010. |
| Marek Balicki | Social Democracy of Poland | | |
| Anna Bańkowska | Social Democracy of Poland | 4 – Bydgoszcz | |
| Barbara Bartuś | Law and Justice | | |
| Andrzej Bętkowski | Law and Justice | | |
| Marek Biernacki | Civic Platform | | |
| Andrzej Biernat | Civic Platform | | |
| Antoni Błądek | Law and Justice | | |
| Mariusz Błaszczak | Law and Justice | | |
| Anita Błochowiak | Democratic Left Alliance | | |
| Jacek Bogucki | Law and Justice | | |
| Bogdan Bojko | Civic Platform | 8 – Zielona Góra | |
| Marek Borowski | Social Democracy of Poland | | |
| Krzysztof Brejza | Civic Platform | 4 – Bydgoszcz | |
| Roman Brodniak | Civic Platform | 1 – Legnica | |
| Joachim Brudziński | Law and Justice | | |
| Jacek Brzezinka | Civic Platform | | |
| Beata Bublewicz | Civic Platform | | |
| Jerzy Budnik | Civic Platform | | |
| Bożenna Bukiewicz | Civic Platform | 8 – Zielona Góra | |
| Andrzej Buła | Civic Platform | | |
| Jan Bury | Polish People's Party | | |
| Renata Butryn | Civic Platform | | |
| Marek Cebula | Civic Platform | 8 – Zielona Góra | Resigned on 7 December 2010. |
| Andrzej Celiński | Social Democracy of Poland | | |
| Zbigniew Chlebowski | Civic Platform | 2 – Wałbrzych | |
| Aleksander Chłopek | Law and Justice | | |
| Stanisław Chmielewski | Civic Platform | | |
| Zbigniew Chmielowiec | Law and Justice | | |
| Janusz Chwierut | Civic Platform | | |
| Janusz Cichoń | Civic Platform | | |
| Grażyna Ciemniak | Democratic Left Alliance | 4 – Bydgoszcz | Replaced Janusz Zemke on 24 June 2009. |
| Leszek Cieślik | Civic Platform | | |
| Andrzej Ćwierz | Law and Justice | | |
| Piotr Cybulski | Law and Justice | 1 – Legnica | |
| Tadeusz Cymański | Law and Justice | | |
| Witold Czarnecki | Law and Justice | | |
| Arkadiusz Czartoryski | Law and Justice | | |
| Czesław Czechyra | Civic Platform | | |
| Andrzej Czerwiński | Civic Platform | | |
| Edward Czesak | Law and Justice | | |
| Zdzisław Czucha | Civic Platform | | |
| Andrzej Czuma | Civic Platform | | |
| Eugeniusz Czykwin | Democratic Left Alliance | | |
| Lena Dąbkowska-Cichocka | Law and Justice | | |
| Alicja Dąbrowska | Civic Platform | | |
| Andrzej Dera | Law and Justice | | |
| Zbigniew Dolata | Law and Justice | | |
| Grzegorz Dolniak | Civic Platform | | |
| Ludwik Dorn | Law and Justice | | |
| Marzenna Drab | Law and Justice | 5 – Toruń | |
| Ewa Drozd | Civic Platform | 1 – Legnica | |
| Mirosław Drzewiecki | Civic Platform | | |
| Tomasz Dudziński | Law and Justice | 7 – Chełm | Poland Comes First from 16 November 2010. |
| Artur Dunin | Civic Platform | | |
| Zenon Durka | Civic Platform | | |
| Bronisław Dutka | Polish People's Party | | |
| Janusz Dzięcioł | Civic Platform | 5 – Toruń | |
| Jan Dziedziczak | Law and Justice | | |
| Waldy Dzikowski | Civic Platform | | |
| Joanna Fabisiak | Civic Platform | | |
| Jacek Falfus | Law and Justice | | |
| Jerzy Fedorowicz | Civic Platform | | |
| Arkady Fiedler | Civic Platform | | |
| Marian Filar | Democratic Party – demokraci.pl | 5 – Toruń | |
| Krzysztof Gadowski | Civic Platform | | |
| Andrzej Gałażewski | Civic Platform | | |
| Ryszard Galla | German Minority | | |
| Tomasz Garbowski | Democratic Left Alliance | | |
| Adam Gawęda | Law and Justice | | |
| Stanisław Gawłowski | Civic Platform | | |
| Magdalena Gąsior-Marek | Civic Platform | 6 – Lublin | |
| Grażyna Gęsicka | Law and Justice | | |
| Łukasz Gibała | Civic Platform | | |
| Artur Gierada | Civic Platform | | |
| Zyta Gilowska | Law and Justice | | |
| Witold Gintowt-Dziewałtowski | Democratic Left Alliance | | |
| Zbigniew Girzyński | Law and Justice | 5 – Toruń | |
| Szymon Giżyński | Law and Justice | | |
| Tomasz Głogowski | Civic Platform | | |
| John Godson | Civic Platform | | Since 2010. |
| Mieczysław Golba | Law and Justice | | |
| Henryk Gołębiewski | Democratic Left Alliance | 2 – Wałbrzych | |
| Marian Goliński | Law and Justice | | |
| Kazimierz Gołojuch | Law and Justice | | |
| Artur Górski | Law and Justice | | |
| Tomasz Górski | Law and Justice | | |
| Jerzy Gosiewski | Law and Justice | | |
| Przemysław Gosiewski | Law and Justice | | |
| Jarosław Gowin | Civic Platform | | |
| Cezary Grabarczyk | Civic Platform | | |
| Krystyna Grabicka | Law and Justice | | |
| Aleksander Grad | Civic Platform | | |
| Mariusz Grad | Civic Platform | 7 – Chełm | |
| Paweł Graś | Civic Platform | | |
| Rafał Grupiński | Civic Platform | | |
| Krzysztof Grzegorek | Civic Platform | | |
| Eugeniusz Grzeszczak | Polish People's Party | | |
| Andrzej Grzyb | Polish People's Party | | |
| Andrzej Gut-Mostowy | Civic Platform | | |
| Iwona Guzowska | Civic Platform | | |
| Kazimierz Gwiazdowski | Law and Justice | | |
| Andrzej Halicki | Civic Platform | | |
| Agnieszka Hanajczyk | Civic Platform | | |
| Jolanta Hibner | Civic Platform | | |
| Czesław Hoc | Law and Justice | | |
| Adam Hofman | Law and Justice | | |
| Stanisław Huskowski | Civic Platform | 3 – Wrocław | |
| Tadeusz Iwiński | Democratic Left Alliance | | |
| Dawid Jackiewicz | Law and Justice | 3 – Wrocław | |
| Jarosław Jagiełło | Law and Justice | | |
| Elżbieta Jakubiak | Law and Justice | | |
| Wiesław Janczyk | Law and Justice | | |
| Grzegorz Janik | Law and Justice | | |
| Zdzisława Janowska | Social Democracy of Poland | | |
| Tadeusz Jarmuziewicz | Civic Platform | | |
| Michał Jaros | Civic Platform | 3 – Wrocław | |
| Izabela Jaruga-Nowacka | Democratic Left Alliance | | |
| Wojciech Jasiński | Law and Justice | | |
| Danuta Jazłowiecka | Civic Platform | | |
| Krzysztof Jurgiel | Law and Justice | | |
| Dariusz Kaczanowski | Law and Justice | | |
| Roman Kaczor | Civic Platform | 3 – Wrocław | Replaced Andrzej Łoś on 23 November 2007. |
| Jarosław Kaczyński | Law and Justice | | |
| Stanisław Kalemba | Polish People's Party | | |
| Jarosław Kalinowski | Polish People's Party | | |
| Ryszard Kalisz | Democratic Left Alliance | | |
| Jan Kamiński | Polish People's Party | | |
| Mariusz Kamiński | Law and Justice | | |
| Tomasz Kamiński | Democratic Left Alliance | | |
| Andrzej Kania | Civic Platform | | |
| Lucjan Karasiewicz | Law and Justice | | |
| Sebastian Karpiniuk | Civic Platform | | |
| Grzegorz Karpiński | Civic Platform | 5 – Toruń | |
| Włodzimierz Witold Karpiński | Civic Platform | 6 – Lublin | |
| Karol Karski | Law and Justice | | |
| Mieczysław Kasprzak | Polish People's Party | | |
| Jarosław Katulski | Civic Platform | 4 – Bydgoszcz | |
| Jan Kaźmierczak | Civic Platform | | |
| Beata Kempa | Law and Justice | 3 – Wrocław | |
| Małgorzata Kidawa-Błońska | Civic Platform | | |
| Ewa Kierzkowska | Polish People's Party | 5 – Toruń | |
| Wiesław Kilian | Law and Justice | 3 – Wrocław | Replaced Aleksandra Natalli-Świat on 5 May 2010. Poland Comes First from 16 November 2010. |
| Witold Klepacz | Democratic Left Alliance | | |
| Józef Klim | Civic Platform | | |
| Izabela Kloc | Law and Justice | | |
| Eugeniusz Kłopotek | Polish People's Party | 4 – Bydgoszcz | |
| Sławomir Kłosowski | Law and Justice | | |
| Joanna Kluzik-Rostkowska | Law and Justice | | |
| Magdalena Kochan | Civic Platform | | |
| Witold Kochan | Civic Platform | | |
| Jan Kochanowski | Democratic Left Alliance | 8 – Zielona Góra | |
| Lech Kołakowski | Law and Justice | | |
| Robert Kołakowski | Law and Justice | | |
| Longin Komołowski | Law and Justice | | |
| Bronisław Komorowski | Civic Platform | | |
| Zbigniew Konwiński | Civic Platform | | |
| Ewa Kopacz | Civic Platform | | |
| Domicela Kopaczewska | Civic Platform | | |
| Tadeusz Kopeć | Civic Platform | | |
| Sławomir Kopyciński | Democratic Left Alliance | | |
| Leszek Korzeniowski | Civic Platform | | |
| Roman Kosecki | Civic Platform | | |
| Bożena Kotkowska | Social Democracy of Poland | | |
| Paweł Kowal | Law and Justice | | |
| Henryk Kowalczyk | Law and Justice | | |
| Bogusław Kowalski | Law and Justice | | |
| Jacek Kozaczyński | Civic Platform | | |
| Zbigniew Kozak | Law and Justice | | |
| Jerzy Kozdroń | Civic Platform | | |
| Agnieszka Kozłowska-Rajewicz | Civic Platform | | |
| Mirosław Koźlakiewicz | Civic Platform | | |
| Maks Kraczkowski | Law and Justice | | |
| Janusz Krasoń | Democratic Left Alliance | 3 – Wrocław | |
| Leonard Krasulski | Law and Justice | | |
| Robert Kropiwnicki | Civic Platform | 1 – Legnica | Replaced Janusz Mikulicz on 16 December 2010. |
| Elżbieta Kruk | Law and Justice | 6 – Lublin | |
| Adam Krupa | Civic Platform | | |
| Jacek Krupa | Civic Platform | | |
| Marek Krząkała | Civic Platform | | |
| Adam Krzyśków | Polish People's Party | | |
| Piotr Krzywicki | Law and Justice | | |
| Marek Kuchciński | Law and Justice | | |
| Włodzimierz Kula | Civic Platform | | |
| Jan Kulas | Civic Platform | | |
| Tomasz Kulesza | Civic Platform | | |
| Jan Kuriata | Civic Platform | | |
| Jacek Kurski | Law and Justice | | |
| Kazimierz Kutz | Civic Platform | | |
| Marek Kwitek | Law and Justice | | |
| Stanisław Lamczyk | Civic Platform | | |
| Marek Łatas | Law and Justice | | |
| Tomasz Latos | Law and Justice | 4 – Bydgoszcz | |
| Tomasz Lenz | Civic Platform | 5 – Toruń | |
| Izabela Leszczyna | Civic Platform | | |
| Krzysztof Lipiec | Law and Justice | | |
| Adam Lipiński | Law and Justice | 1 – Legnica | |
| Dariusz Lipiński | Civic Platform | | |
| Bogdan Lis | Democratic Party – demokraci.pl | | |
| Krzysztof Lisek | Civic Platform | | |
| Arkadiusz Litwiński | Civic Platform | | |
| Jan Łopata | Polish People's Party | 6 – Lublin | |
| Andrzej Łoś | Civic Platform | 3 – Wrocław | Resigned 10 November 2007. |
| Mieczysław Łuczak | Polish People's Party | | |
| Elżbieta Łukacijewska | Civic Platform | | |
| Marzena Machałek | Law and Justice | 1 – Legnica | |
| Krzysztof Maciejewski | Law and Justice | | |
| Antoni Macierewicz | Law and Justice | | |
| Beata Małecka-Libera | Civic Platform | | |
| Krystyna Łybacka | Democratic Left Alliance | | |
| Ewa Malik | Law and Justice | | |
| Mirosław Maliszewski | Polish People's Party | | |
| Michał Marcinkiewicz | Civic Platform | | |
| Barbara Marianowska | Law and Justice | | |
| Wacław Martyniuk | Democratic Left Alliance | | |
| Gabriela Masłowska | Law and Justice | 6 – Lublin | |
| Mirosława Masłowska | Law and Justice | | |
| Jerzy Materna | Law and Justice | 8 – Zielona Góra | |
| Katarzyna Matusik-Lipiec | Civic Platform | | |
| Zbigniew Matuszczak | Democratic Left Alliance | 7 – Chełm | |
| Marek Matuszewski | Law and Justice | | |
| Kazimierz Matuszny | Law and Justice | | |
| Jarosław Matwiejuk | Democratic Left Alliance | | |
| Krzysztof Matyjaszczyk | Democratic Left Alliance | | |
| Beata Mazurek | Law and Justice | 7 – Chełm | |
| Antoni Mężydło | Civic Platform | 5 – Toruń | |
| Krzysztof Michałkiewicz | Law and Justice | 6 – Lublin | |
| Janusz Mikulicz | Civic Platform | 1 – Legnica | Resigned on 30 November 2010. |
| Henryk Milcarz | Democratic Left Alliance | | |
| Konstanty Miodowicz | Civic Platform | | |
| Henryk Młynarczyk | Law and Justice | 7 – Chełm | Replaced Wojciech Żukowski on 14 December 2010. |
| Aldona Młyńczak | Civic Platform | 3 – Wrocław | |
| Wojciech Mojzesowicz | Law and Justice | 4 – Bydgoszcz | |
| Kazimierz Moskal | Law and Justice | | |
| Tadeusz Motowidło | Democratic Left Alliance | | |
| Czesław Mroczek | Civic Platform | | |
| Izabela Katarzyna Mrzygłocka | Civic Platform | 2 – Wałbrzych | |
| Joanna Mucha | Civic Platform | 6 – Lublin | |
| Arkadiusz Mularczyk | Law and Justice | | |
| Jan Musiał | Civic Platform | | |
| Tadeusz Naguszewski | Civic Platform | | |
| Witold Namyślak | Civic Platform | | |
| Grzegorz Napieralski | Democratic Left Alliance | | |
| Aleksandra Natalli-Świat | Law and Justice | 3 – Wrocław | Died 10 April 2010. |
| Sławomir Neumann | Civic Platform | | |
| Stefan Niesiołowski | Civic Platform | 8 – Zielona Góra | |
| Sławomir Nitras | Civic Platform | | |
| Maria Nowak | Law and Justice | | |
| Sławomir Nowak | Civic Platform | | |
| Tomasz Piotr Nowak | Civic Platform | | |
| Andrzej Nowakowski | Civic Platform | | |
| Mirosława Nykiel | Civic Platform | | |
| Marzena Okła-Drewnowicz | Civic Platform | | |
| Stanisław Olas | Polish People's Party | | |
| Jan Ołdakowski | Law and Justice | | |
| Alicja Olechowska | Civic Platform | | |
| Danuta Olejniczak | Civic Platform | | |
| Wojciech Olejniczak | Democratic Left Alliance | | |
| Paweł Olszewski | Civic Platform | 4 – Bydgoszcz | |
| Marek Opioła | Law and Justice | | |
| Andrzej Orzechowski | Civic Platform | | |
| Maciej Orzechowski | Civic Platform | | |
| Jacek Osuch | Law and Justice | | |
| Artur Ostrowski | Democratic Left Alliance | | |
| Konstanty Oświęcimski | Civic Platform | | |
| Stanisław Ożóg | Law and Justice | | |
| Zbigniew Pacelt | Civic Platform | | |
| Witold Pahl | Civic Platform | 8 – Zielona Góra | |
| Janusz Palikot | Civic Platform | 6 – Lublin | Resigned on 10 January 2011. |
| Anna Paluch | Law and Justice | | |
| Andrzej Pałys | Polish People's Party | | |
| Mirosław Pawlak | Polish People's Party | | |
| Waldemar Pawlak | Polish People's Party | | |
| Bolesław Piecha | Law and Justice | | |
| Janusz Piechociński | Polish People's Party | | |
| Sławomir Jan Piechota | Civic Platform | 3 – Wrocław | |
| Elżbieta Pierzchała | Civic Platform | | |
| Danuta Pietraszewska | Civic Platform | | |
| Jarosław Pięta | Civic Platform | | |
| Stanisław Pięta | Law and Justice | | |
| Jacek Pilch | Law and Justice | | |
| Teresa Piotrowska | Civic Platform | 4 – Bydgoszcz | |
| Grzegorz Pisalski | Social Democracy of Poland | | |
| Julia Pitera | Civic Platform | | |
| Maciej Płażyński | Law and Justice | | |
| Kazimierz Plocke | Civic Platform | | |
| Marek Plura | Civic Platform | | |
| Jerzy Polaczek | Law and Justice | | |
| Marek Polak | Law and Justice | | |
| Piotr Polak | Law and Justice | | |
| Wojciech Pomajda | Democratic Left Alliance | | |
| Paweł Poncyljusz | Law and Justice | | |
| Krzysztof Popiołek | Law and Justice | | |
| Sławomir Preiss | Civic Platform | | |
| Stanisława Prządka | Democratic Left Alliance | | |
| Krzysztof Putra | Law and Justice | | |
| Norbert Raba | Civic Platform | 3 – Wrocław | |
| Józef Racki | Polish People's Party | | |
| Damian Raczkowski | Civic Platform | | |
| Elżbieta Radziszewska | Civic Platform | | |
| Elżbieta Rafalska | Law and Justice | 8 – Zielona Góra | |
| Stanisław Rakoczy | Polish People's Party | | |
| Grzegorz Raniewicz | Civic Platform | 7 – Chełm | |
| Ireneusz Raś | Civic Platform | | |
| Jan Religa | Law and Justice | | |
| Zbigniew Religa | Law and Justice | | |
| Jerzy Rębek | Law and Justice | 7 – Chełm | |
| Adam Rogacki | Law and Justice | | |
| Józef Rojek | Law and Justice | | |
| Nelly Rokita | Law and Justice | | |
| Tadeusz Ross | Civic Platform | | |
| Grzegorz Roszak | Civic Platform | 4 – Bydgoszcz | |
| Halina Rozpondek | Civic Platform | | |
| Jarosław Rusiecki | Law and Justice | | |
| Jakub Rutnicki | Civic Platform | | |
| Arkadiusz Rybicki | Civic Platform | | |
| Sławomir Rybicki | Civic Platform | | |
| Stanisław Rydzoń | Democratic Left Alliance | | |
| Zbigniew Rynasiewicz | Civic Platform | | |
| Andrzej Ryszka | Civic Platform | | |
| Jan Rzymełka | Civic Platform | | |
| Małgorzata Sadurska | Law and Justice | 6 – Lublin | |
| Wojciech Saługa | Civic Platform | | |
| Marek Sawicki | Polish People's Party | | |
| Grzegorz Schetyna | Civic Platform | 1 – Legnica | |
| Mirosław Sekuła | Civic Platform | | |
| Dariusz Seliga | Law and Justice | | |
| Jarosław Sellin | Law and Justice | | |
| Joanna Senyszyn | Democratic Left Alliance | | |
| Edward Siarka | Law and Justice | | |
| Henryk Siedlaczek | Civic Platform | | |
| Izabella Sierakowska | Social Democracy of Poland | 6 – Lublin | |
| Anna Sikora | Law and Justice | | |
| Radosław Sikorski | Civic Platform | 4 – Bydgoszcz | |
| Witold Sitarz | Civic Platform | | |
| Aleksander Skorupa | Civic Platform | 3 – Wrocław | Resigned 28 December 2010. |
| Krystyna Skowrońska | Civic Platform | | |
| Joanna Skrzydlewska | Civic Platform | | |
| Bożena Sławiak | Civic Platform | 8 – Zielona Góra | |
| Tadeusz Sławecki | Polish People's Party | 7 – Chełm | |
| Iwona Śledzińska-Katarasińska | Civic Platform | | |
| Andrzej Smirnow | Civic Platform | | |
| Tomasz Smolarz | Civic Platform | 2 – Wałbrzych | |
| Anna Sobecka | Law and Justice | 5 – Toruń | |
| Wojciech Sokołowski | Civic Platform | 1 – Legnica | Entered Sejm on 16 December 2010 |
| Krzysztof Sońta | Law and Justice | | |
| Andrzej Sośnierz | Law and Justice | | |
| Lech Sprawka | Law and Justice | 6 – Lublin | |
| Piotr Stanke | Law and Justice | | |
| Lidia Staroń | Civic Platform | | |
| Marian Starownik | Polish People's Party | 6 – Lublin | Replaced Edward Wojtas on 20 May 2010. |
| Jarosław Stawiarski | Law and Justice | 6 – Lublin | |
| Stanisław Stec | Democratic Left Alliance | | |
| Franciszek Stefaniuk | Polish People's Party | 7 – Chełm | |
| Elżbieta Streker-Dembińska | Democratic Left Alliance | | |
| Adam Struzik | Polish People's Party | | |
| Michał Stuligrosz | Civic Platform | | |
| Marek Suski | Law and Justice | | |
| Paweł Suski | Civic Platform | | |
| Miron Sycz | Civic Platform | | |
| Wojciech Szarama | Law and Justice | | |
| Wiesław Szczepański | Democratic Left Alliance | | |
| Michał Szczerba | Civic Platform | | |
| Aleksander Szczygło | Law and Justice | | |
| Jolanta Szczypińska | Law and Justice | | |
| Adam Szejnfeld | Civic Platform | | |
| Andrzej Szlachta | Law and Justice | | |
| Jerzy Szmajdziński | Democratic Left Alliance | 1 – Legnica | Died on 10 April 2010. |
| Grzegorz Sztolcman | Civic Platform | | |
| Jakub Szulc | Civic Platform | 2 – Wałbrzych | |
| Stanisław Szwed | Law and Justice | | |
| Beata Szydło | Law and Justice | | |
| Bożena Szydłowska | Civic Platform | | |
| Jolanta Szymanek-Deresz | Democratic Left Alliance | | |
| Jan Szyszko | Law and Justice | | |
| Krzysztof Tchórzewski | Law and Justice | | |
| Robert Telus | Law and Justice | | |
| Ryszard Terlecki | Law and Justice | | |
| Grzegorz Tobiszowski | Law and Justice | | |
| Jan Tomaka | Civic Platform | | |
| Piotr Tomański | Civic Platform | | |
| Irena Tomaszak-Zesiuk | Civic Platform | | |
| Tadeusz Tomaszewski | Democratic Left Alliance | | |
| Jacek Tomczak | Law and Justice | | |
| Cezary Tomczyk | Civic Platform | | |
| Tomasz Tomczykiewicz | Civic Platform | | |
| Donald Tusk | Civic Platform | | |
| Łukasz Tusk | Civic Platform | | |
| Krzysztof Tyszkiewicz | Civic Platform | | |
| Robert Tyszkiewicz | Civic Platform | | |
| Kazimierz Michał Ujazdowski | Law and Justice | 3 – Wrocław | |
| Cezary Urban | Civic Platform | | |
| Jarosław Urbaniak | Civic Platform | | |
| Piotr van der Coghen | Civic Platform | | |
| Jarosław Wałęsa | Civic Platform | | |
| Andrzej Walkowiak | Law and Justice | | |
| Teresa Wargocka | Law and Justice | | |
| Piotr Waśko | Civic Platform | | |
| Zbigniew Wassermann | Law and Justice | | |
| Robert Węgrzyn | Civic Platform | | |
| Jerzy Wenderlich | Democratic Left Alliance | 5 – Toruń | |
| Waldemar Wiązowski | Law and Justice | 2 – Wałbrzych | |
| Jan Widacki | Democratic Party – demokraci.pl | | |
| Monika Wielichowska | Civic Platform | 2 – Wałbrzych | |
| Marek Wikiński | Democratic Left Alliance | | |
| Wojciech Wilk | Civic Platform | 6 – Lublin | |
| Jadwiga Wiśniewska | Law and Justice | | |
| Stanisław Witaszczyk | Polish People's Party | | |
| Elżbieta Witek | Law and Justice | 1 – Legnica | |
| Radosław Witkowski | Civic Platform | | |
| Wiesław Woda | Polish People's Party | | |
| Jarosław Wojciechowski | Civic Platform | 3 – Wrocław | Replaced Aleksander Skorupa on 19 January 2011. |
| Zbigniew Wojciechowski | Civic Platform | 6 – Lublin | Replaced Janusz Palikot on 1 February 2011. Poland Comes First from 1 February 2011. |
| Marek Wójcik | Civic Platform | | |
| Norbert Wojnarowski | Civic Platform | 1 – Legnica | |
| Edward Wojtas | Polish People's Party | 6 – Lublin | Died on 10 April 2010. |
| Michał Wojtkiewicz | Law and Justice | | |
| Marek Wojtkowski | Civic Platform | 5 – Toruń | |
| Ewa Wolak | Civic Platform | 3 – Wrocław | |
| Bogusław Wontor | Democratic Left Alliance | 8 – Zielona Góra | |
| Tadeusz Woźniak | Law and Justice | | |
| Waldemar Wrona | Law and Justice | | |
| Marzena Wróbel | Law and Justice | | |
| Adam Wykręt | Civic Platform | | |
| Stanisław Wziątek | Democratic Left Alliance | | |
| Jacek Zacharewicz | Civic Platform | | |
| Jarosław Żaczek | Law and Justice | 6 – Lublin | |
| Stanisław Zając | Law and Justice | | |
| Jadwiga Zakrzewska | Civic Platform | 1 – Legnica | Replaced Jerzy Szmajdziński on 7 May 2010. |
| Jacek Żalek | Civic Platform | | |
| Anna Zalewska | Law and Justice | 2 – Wałbrzych | |
| Paweł Zalewski | Law and Justice | | |
| Renata Zaremba | Civic Platform | | |
| Ryszard Zawadzki | Civic Platform | | |
| Marcin Zawiła | Civic Platform | 1 – Legnica | |
| Sławomir Zawiślak | Law and Justice | 7 – Chełm | |
| Łukasz Zbonikowski | Law and Justice | 5 – Toruń | |
| Ryszard Zbrzyzny | Democratic Left Alliance | 1 – Legnica | |
| Hanna Zdanowska | Civic Platform | | Resigned in 2010. |
| Bogdan Zdrojewski | Civic Platform | 3 – Wrocław | |
| Stanisław Żelichowski | Polish People's Party | | |
| Janusz Zemke | Democratic Left Alliance | 4 – Bydgoszcz | Resigned on 10 June 2009. |
| Anna Zielińska-Głębocka | Civic Platform | | |
| Jarosław Zieliński | Law and Justice | | |
| Marek Zieliński | Civic Platform | | |
| Wojciech Ziemniak | Civic Platform | | |
| Zbigniew Ziobro | Law and Justice | | |
| Jerzy Ziętek | Civic Platform | | |
| Stanisław Żmijan | Civic Platform | 7 – Chełm | |
| Maria Zuba | Law and Justice | | |
| Wojciech Żukowski | Law and Justice | 7 – Chełm | Resigned on 7 December 2010. |
| Józef Zych | Polish People's Party | 8 – Zielona Góra | |
| Adam Żyliński | Civic Platform | | |