Alatalo is a Finnish surname. Notable people with the surname include:
Mika Alatalo (born 1971), Finnish ice hockey player Mikko Alatalo (born 1951), Finnish musician and politician Santeri Alatalo (born 1990), Finnish ice hockey player Toimi Alatalo (1929–2014), Finnish cross-country skier William Alatalo (born 2002), Finnish racing driver