A troubadour (English: , French: [tʁubaduʁ] (listen); Occitan: trobador [tɾuβaˈðu] (listen)) was a composer and performer of Old Occitan lyric poetry during the High Middle Ages (1100–1350). Since the word troubadour is etymologically masculine, a female troubadour is usually called a trobairitz.

The troubadour school or tradition began in the late 11th century in Occitania, but it subsequently spread to the Italian and Iberian Peninsulas. Under the influence of the troubadours, related movements sprang up throughout Europe: the Minnesang in Germany, trovadorismo in Galicia and Portugal, and that of the trouvères in northern France. Dante Alighieri in his De vulgari eloquentia defined the troubadour lyric as fictio rethorica musicaque poita: rhetorical, musical, and poetical fiction. After the "classical" period around the turn of the 13th century and a mid-century resurgence, the art of the troubadours declined in the 14th century and around the time of the Black Death (1348) it died out.

The texts of troubadour songs deal mainly with themes of chivalry and courtly love. Most were metaphysical, intellectual, and formulaic. Many were humorous or vulgar satires. Works can be grouped into three styles: the trobar leu (light), trobar ric (rich), and trobar clus (closed). Likewise there were many genres, the most popular being the canso, but sirventes and tensos were especially popular in the post-classical period.