SKA may refer to:

• Ska, a style of music
• Ska-P, a Spanish ska punk band
• Square Kilometre Array, a radio telescope under design
• SKA Brewing, a microbrewery in Durango, Colorado
• Shotokan Karate of America
• Skagen (The Skaw), a town in Denmark
• Acharnes Railway Center (SKA), a railway junction in Athens, Greece

Ska (, Jamaican ) is a music genre that originated in Jamaica in the late 1950s, and was the precursor to rocksteady and reggae. Ska combined elements of Caribbean mento and calypso with American jazz and rhythm and blues. It is characterized by a walking bass line accented with rhythms on the upbeat. In the early 1960s, ska was the dominant music genre of Jamaica and was popular with British mods. Later it became popular with many skinheads.