Soysa or de Soysa is a surname. Notable people with the surname include:
A. J. R. de Soysa, Ceylonese landed proprietor and politician Bennet Soysa, Ceylonese politician and philanthropist Bernard Soysa, Sri Lankan politician Chamara de Soysa, Sri Lankan cricketer Charles Henry de Soysa, Ceylonese entrepreneur and philanthropist Dilshan de Soysa, Sri Lankan cricketer Evelyn de Soysa, Sri Lankan politician Gamini Vijith Vijithamuni Soysa, Sri Lankan politician Harold de Soysa, Ceylonese Anglican bishop Jeronis de Soysa, Ceylonese entrepreneur and philanthropist Priyani Soysa, Sri Lankan scientist Arseculeratne v. Priyani Soysa, a court case Punsiri Soysa, Sri Lankan singer Rohan Soysa, Sri Lankan cricketer Ryle de Soysa, Sri Lankan cricketer and entrepreneur Thusith de Soysa, Sri Lankan cricketer Wasantha Soysa, Sri Lankan karateka Wilfred de Soysa, Ceylonese entrepreneur, landed proprietor and philanthropist Yohan Soysa, Sri Lankan cricketer
See also De Soysa Stadium, Moratuwa, Sri Lanka (de) Zoysa, a surname