Masaryk is a Czech surname. Notable people with the surname include:
Tomáš Garrigue Masaryk (1850–1937), Austro-Hungarian and Czechoslovak statesman, sociologist, philosopher, and the first President and founder of CzechoslovakiaJan Masaryk (1886–1948), Czech diplomat and politician, the son of Tomáš Garrigue MasarykAlice Masaryk (1879–1966), Czech sociologist and one of the founding members of the Czechoslovak Red Cross, the daughter of Tomáš Garrigue MasarykPavol Masaryk (born 1980), Slovak football strikerFritzi Massary (born Massaryk)