Mäki is a Finnish surname of Laine type meaning "hill". Notable people with the surname include:
Jaakko Mäki (1878–1938), Finnish politician Joni Mäki (born 1995), Finnish cross-country skier Kristiina Mäki (born 1991), Finnish-Czech runner Matti Mäki (born 1982), Finnish swimmer Mika Mäki (born 1988), Finnish racing driver Olli Mäki (1936–2019), Finnish boxer Reijo Mäki (born 1958), Finnish writer of crime fiction Taisto Mäki (1910–1979), Finnish long-distance runner Tauno Mäki (1912–1983), Finnish sport shooter Teemu Mäki (born 1967), Finnish artist Tomi Mäki (born 1983), Finnish ice hockey player
See also Mägi, an Estonian surname with the same meaning ("hill") Maki (disambiguation)