KKY may refer to:
Kappa Kappa Psi (ΚΚΨ), United States national honorary band fraternity Kilkenny Airport, Ireland, IATA airport code KKY Kalau Kawau Ya (KKY), one of the western and central Torres Strait languages, see Kala Lagaw Ya Ka Kwe Ye, government defence militia in Burma, see Lo Hsing Han Library of Congress classification for Ukraine law since 1991, see Library of Congress Classification:Class K -- Law - Europe
See also Kim Ki-young (1922–1998), South Korean film director