Mrázek is a Czech surname. Notable people include:Daniel Mrázek, Czech ice dancer
František Mrázek, controversial Czech entrepreneur
František Mrázek, Czech ice hockey player
Giedrė Lukšaitė-Mrázková, Lithuanian harpsichordist
Ivan Mrázek, Czech basketball player and coach
Jana Mrázková, Czech figure skater
Jaroslav Mrázek, Czech ice hockey player
Jerome Mrazek, Canadian ice hockey goaltender
Kateřina Mrázková, Czech ice dancer
Petr Mrázek, Czech ice hockey player
Robert J. Mrazek, politician and author from New York
Roman Mrázek, race walker who represented Czechoslovakia and later Slovakia
Tomáš Mrázek, professional Czech rock climber
Václav Mrázek, Czech serial killer