Yak (disambiguation)

A yak is a long-haired species of cattle. There are two types of yak:
 Domestic yak (Bos grunniens)
 Wild yak (Bos mutus)

Yak may also refer to:
 Yakovlev or Yak Aircraft Corporation, or numerous aircraft designed or manufactured by this company
 A member of a yakuza organization
 IATA airport code for Yakutat Airport in Yakutat, Alaska