反君权运动（法语：Monarchomaques，英语：Monarchomachs），出现在16世纪末，反对绝对君主制的运动，最早由法国雨格诺派理论家所提出，为刺杀暴君（英语：Tyrannicide）提出理论上的支持。英语：Monarchomachs 这个单字是由苏格兰天主教法学家威廉‧巴克莱（William Barclay）提出，他结合了希腊语：μόναρχος（monarchos，意为独一的统治者，君主）以及希腊语：μάχομαι（makhomai，意为对抗），创造出这个单字，意思为反抗君主者。

The Monarchomachs (French:Monarchomaques) were originally French Huguenot theorists who opposed monarchy at the end of the 16th century, known in particular for having theoretically justified tyrannicide. The term was originally a pejorative word coined in 1600 by the Scottish royalist and Catholic William Barclay (1548–1608) from the Greek μόναρχος (monarchos  – "monarch, sole ruler") and μάχομαι ("makhomai"  – the verb meaning "to fight"), meaning "those who fight against monarchs."