Keijo Kullervo Kalske (February 28, 1912, Lahti, Finland – January 26, 1977, Helsinki, Finland) was a Finnish actor.

Kalske, who worked as a police officer in Kotka before his film career, had performed occasionally at Kotka City Theater. Bulky and broad-shouldered, the 186-centimeters-tall Kalske was often seen on stage and in films in the roles of a soldier, a police or a guard, who he was perfectly fit to interpret with professionalism due to his police background. He played the role of a police or an officer in more than 30 films, most of which were small since the 1950s. Throughout the 1950s, Kalske, who was one of the most popular movie heroes of the late 1930s and 1940s, managed to get just a few larger movie roles in movies. His last film role was in the 1971 film The Count. On television, he still appeared in 1978 in the miniseries Men of War and Peace. He performed at the Finnish Workers' Theater in the 1940s and Helsinki City Theater since 1957.