武功歌（法语：Chanson de geste）是在法语文学开端出现的史诗。已知最早的武功歌出现在11世纪晚期和12世纪早期，是在游吟诗人的抒情诗和最早的骑士诗之前。

The chanson de geste, Old French for "song of heroic deeds" (from gesta: Latin: "deeds, actions accomplished"), is a medieval narrative, a type of epic poem that appears at the dawn of French literature. The earliest known poems of this genre date from the late eleventh and early twelfth centuries, before the emergence of the lyric poetry of the trouvères (troubadours) and the earliest verse romances. They reached their apogee in the period 1150–1250.