Y D

YD, or Yd may refer to: Yard (yd), a unit of length Nissan YD engine, an automobile engine Yarmouth–Dennis Red Sox, or Y-D Red Sox, a collegiate summer baseball team based in South Yarmouth, Massachusetts Younger Dryas, a geological period from c. 12,900 to c. 11,700 calendar years ago South Yemen (ISO 3166-1 code YD) A US Navy hull classification symbol: Floating derrick (YD) YD - Young Diem / Early Day Yd. (retailer), an Australia and New Zealand clothing retail chain