Jayasundera is a surname. Notable people with the surname include:
Akila Jayasundera (born 1992), Sri Lankan cricketer Don Jayasundera (1911–1964), Ceylonese cricketer Layard Jayasundera, Ceylonese politician P. B. Jayasundera, Sri Lankan economist Praneth Jayasundera (born 1980), Sri Lankan cricketer T. B. Jayasundera, Ceylonese politician Thusitha Jayasundera (born 1971), Sri Lankan actress Udara Jayasundera (born 1991), Sri Lankan cricketer Ukwatte Jayasundera, Ceylonese criminal lawyer