Aurélien Cotentin (French pronunciation: ​[oʁeljɛ̃ kɔtɑ̃ˈtɛ̃]; born 1 August 1982 in Alençon, Orne), better known by his stage name Orelsan, sometimes stylized as OrelSan ([ɔʁɛlˈsan]), is a French rapper, songwriter and record producer. He has released two studio albums, his debut Perdu d'avance released on 16 February 2009, and the follow-up Le chant des sirènes released on 26 September 2011. He is also one half of the French hip hop duo Casseurs Flowters, along with Gringe, with whom he has released one studio album, Orelsan et Gringe sont les Casseurs Flowters.

Orelsan's artistry and rapping technique has drawn him comparisons to American rap legend Eminem on several occasions, primarily because they are both prominent white rappers and both are known for their ability to switch between or combine violent and comical rapping techniques.