Kallis is a surname. Notable people with the name include:
Aristotle Kallis (born 1970), British historian Bjarne Kallis (born 1945), Finnish politician Christos Kallis (born 1998), Cypriot football player Danny Kallis (born 1957), American television writer and producer George Kallis, Cypriot film and TV composer Giorgos Kallis (born 1972), Greek ecological economist Jacques Kallis (born 1975), South African cricketer Oskar Kallis (1892–1918), Estonian artist