YDD
YDD stands for:
- Yankee Doodle Dandy , American film musical
- South Yemeni dinar (ISO-4217 code), historical unit of currency in South Yemen
- YDD Box , family of coasters, see Yorkshire Drydock Box
ydd stands for:
- East Yiddish dialects (ISO-639-3 code), one of the two languages differentiated in Yiddish
