THD

THD may refer to:

• Total harmonic distortion, a measure of the distortion of an audio signal
• Total Hi Def (Total HD), an optical disc format
• Th.D. or D.Th. or D.Theol., a Doctor of Theology degree
• Thames Ditton railway station, Surrey, National Rail station code
• THD Electronics, a guitar amplifier manufacturer
• Transanal hemorrhoidal dearterialization, a surgical procedure
• That Handsome Devil, an American alternative rock band
• The IATA airport code for Thọ Xuân Airport
• The ICAO airline code for Thai Smile
• Transmitting Heading Device

This disambiguation page lists articles associated with the title THD.
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