Hašek is a Czech surname. The feminine gender is Hašková. Notable people with the surname include:

• Dominik Hašek, Czech ice hockey goaltender
  • The asteroid 8217 Dominikhašek, named in honour of Dominik Hašek's Olympic gold
• Eduard Hašek, Czech athlete
• Jaroslav Hašek (1883–1923), Czech writer known for the novel The Good Soldier Švejk
  • Asteroid 2734 Hašek named after Jaroslav Hašek
• Ivan Hašek, Czech footballer and coach
• Martin Hašek, Czech footballer and coach
• Michal Hašek, Czech politician

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