BJK (disambiguation)

BJK or Beşiktaş J.K. is a Turkish sports club.

BJK or bjk may also refer to:
 * Benjina-Nangasuri Airport, Maluku, Indonesia (IATA code: BJK)
 * Barok language of New Ireland, PNG (ISO code: bjk)
 * Big Jock Knew, Scottish football chant
 * Billie Jean King, American tennis player
 * USTA Billie Jean King National Tennis Center