Sexion d'Assaut is a French rap group formed in 2002, and composed of eight rappers from the Paris regions. They are signed to the independent Wati B record label, which is under exclusive license to Sony Music Entertainment France.

The founding members were L.I.O., Adams Diallo, Maska and Lefa. In 2003, it became a collective as Maitre Gims and JR joined in. Throughout its existence, it included about 20 rappers, but set-up changed from time to time. The group distinguishes itself of staying away from "bling bling" that other French rappers have adopted. They also retain the style of old school hip-hop, but keep underground influences and spent almost a decade fostering an underground fanbase before releasing their debut studio album L'école des points vitaux in 2010.