Rahkeim Calief Meyer (born February 11, 1978), better known by his stage name Roc Marciano, is an American rapper and record producer. He is known for his intricate internal rhymes and wordplay detailing mafioso and pimp themes over sample based production. He has been called the "Godfather of the Underground" for pioneering the resurgence of gritty, lyrical rap and use of drumless sample loops in the early 2010s with his highly influential debut album Marcberg (2010).

Marciano has gone on to release 10 studio albums and a variety of mixtapes and EPs, most of which are almost entirely produced by Marciano himself, with the notable exceptions of the DJ Muggs-produced Kaos (2018) and the Alchemist-produced The Elephant Man's Bones (2022). He frequently collaborates with the two, in addition to other underground artists such as Knowledge the Pirate, Ka, Action Bronson, Flee Lord, and various members of the Griselda collective while also producing for other artists.