Ježek (feminine Ježková) is a Czech surname meaning hedgehog. Notable people include:
Jaromír Ježek (born 1986), Czech judoka Jaroslav Ježek (1906–1942), Czech composer Jaroslav Ježek (1923–2002), Czech designer Jaroslav Ježek (1926–1998), Czech chess player Jiří Ježek (born 1974), Czech cyclist and Paralympian Josef Ježek, Czech politician Kenneth Jezek, American actor, dancer Linda Jezek (born 1960), American swimmer Patrik Ježek (born 1976), Czech football (soccer) midfielder Petr Ježek, Czech politician Robert Jezek, Canadian actor Stanislav Ježek (born 1976), Czech slalom canoer Václav Ježek (1923–1995), Czech football coach