Kadlec is a Czech surname meaning weaver. Notable people with the surname include:Andrej Kadlec, Slovak footballer
Arnold Kadlec, Czech ice hockey player
Drahomír Kadlec, Czech ice hockey player
Jiřina Kadlecová, Czech field hockey player
Klára Kadlecová, Czech figure skater
Marta Kadlecová, Czech swimmer
Michal Kadlec, Czech footballer
Milan Kadlec, Czech racing cyclist
Milan Kadlec (pentathlete) (1958–2001), Czech pentathlete
Miroslav Kadlec, Czech footballer
Monika Kadlecová, Slovak road cyclist
Petr Kadlec, Czech ice hockey player
Robert Kadlec, American civil servant
Václav Kadlec, Czech footballer
Vladimír Kadlec, German basketball player