DYD
DYD may refer to:
- Djugun dialect, the ISO 639-3 code DYD
 - Duyun East railway station, the station code DYD
 - Dydrogesterone, a progestin used in menopausal hormone therapy
 
See also
- DYDD (disambiguation)
 - Jean d'Yd (1880–1964), French actor and comedian