Imperius Rex is the fourth solo studio album by American rapper Sean Price.

It features guest appearances from Bernadette Price, Buckshot, Foul Monday, Freeway, Ike Eyez, Inspectah Deck, Junior Reid, Method Man, MF Doom, Prodigy, Raekwon, Rim P, Rock, Ruste Juxx, Smif-N-Wessun, Styles P and Vic Spencer.

Dana Scott of HipHopDX stated: "This is an impressive showcase for his fans".

[4] Chris Gibbons of XXL said: "Imperius Rex is a worthy entry into the Sean Price canon, and proof that his voice will still live on in hip-hop well after his untimely passing".

[7] AllMusic's Paul Simpson said: "Nobody on the album overshadows Price, who sounds as forceful, commanding, and even as funny as ever".