Klika is a surname. Notable people with the surname include:
Bill Klika, (born 1945), American football and baseball coach Bohumil Klika (1868–1942), Czech zoologist and paleontologist, also known as Gottlieb Klika Čeněk Klika, Czech Scouting official Miloš Klika (1890–?), Bohemian fencer Russell Klika (born 1960), American military photojournalist