Fonseka () is a Sri Lankan surname of Portuguese origin. Notable people with the surname include:
Andrea Fonseka (born 1984), Malaysian actress, model, beauty pageant titleholder Anoma Fonseka (born 1957), Sri Lankan wife of Sarath Fonseka Bibile Fonseka, Ceylonese politician Bhavani Fonseka, Sri Lankan lawyer and activist Carlo Fonseka (1933–2019), Sri Lankan physician, academic and political activist Damayanthi Fonseka (born 1960), Sri Lankan Actress Errol Fonseka, Seychellois businessman and politician Eugene Reginald de Fonseka (1912–2003), Sri Lankan lawyer and puisne justice of the Supreme Court J. P. de Fonseka (1897–1948), Sri Lankan essayist and editor Lionel de Fonseka, Sri Lankan writer and art critic Malini Fonseka (1947–2025), Sri Lankan actress, filmmaker and politician Mervyn Fonseka (1897–1946), Sri Lankan lawyer and 15th Solicitor General Sakuranga Fonseka (born 1993), Sri Lankan cricketer Saman Fonseka (born 1969), Sri Lankan cricketer Samanalee Fonseka (born 1981), Sri Lankan actress and singer Sarath Fonseka (born 1950), Sri Lankan Army officer, Field Marshal and politician Senali Fonseka (born 1992), Sri Lankan actress Shantha Fonseka (born 1975), Sri Lankan cricketer and umpire Shewon Fonseka (born 1998), Sri Lankan cricketer Sriyani Kulawansha-Fonseka (born 1970), Sri Lankan athlete Susantha de Fonseka (1900–1963), Ceylonese statesman and diplomat
See also