Puustinen is a Finnish surname. Notable people with the surname include:
Jami Puustinen (born 1987), Finnish footballer Juuso Puustinen (born 1988), Finnish ice hockey player Risto Puustinen (born 1959), Finnish football manager and former footballer Sanna Puustinen (born 1988), Finnish curler Timo Puustinen (born 1979), Finnish film director Valtteri Puustinen (born 1999), Finnish ice hockey player