Kosta is a surname. Notable people with the surname include:
Michael Kosta (born 1979), American stand-up comedian Nicole Kosta (born 1993), Canadian ice hockey player Shiv Prasad Kosta (born 1931), Indian space scientist and educationist Steve Kosta (born 1950), Australian former rugby league footballer Tessa Kosta (1890–1981), American actress who starred in Broadway musicals and operettas Zdeněk Košta (1923–2020), Czech Olympic cyclist
See also Costa (surname)