Straw Hats' Jolly Roger

The Straw Hats' Jolly Roger (Japanese: 麦わらの一味の旗, Hepburn: Mugiwara no Ichimi no Hata), also known as the Straw Hats' Skull and Crossbones, is a pirate flag predominantly featured in the Japanese One Piece manga and its anime franchise, wherein it is used to identify the protagonist Straw Hats, a pirate crew who often fight for liberation of oppressed peoples. The fictional Jolly Roger is of a cartoonish skull with two crossbones and a straw hat similar to the one worn by Monkey D. Luffy.

The Straw Hats' Jolly Roger is a symbol for several global youth-led protest movements. In the August 2025 Indonesian protests, people began using the flag instead of the national flag as a form of protest against the government, and the practice spread to other countries. Notably, the flag saw widespread use during protests in Nepal and Madagascar which overthrew their respective governments. The flag has also seen use in protests in other countries across Africa, the Americas, and Eurasia.