Tomášek is a common Czech surname, meaning "little Thomas". Notable people include:Bohumil Tomášek, Czech basketball player
David Tomášek, Czech professional ice hockey player
František Tomášek (1899–1992), archbishop of Prague, cardinal
Josef Tomášek (1904–1979), Czech water polo player
Juraj Tomášek, Slovak football midfielder
Martin Tomášek, Czech ice hockey player
Rudolf Tomášek (1937–2025), Czech pole vaulter
Václav Tomášek (1774–1850), Czech composer