Monthly Comic REX

is a Japanese shōnen manga magazine published by Ichijinsha. The first issue was sold on December 9, 2005, and is sold monthly on the ninth. Manga collected into bound volumes which were serialized in this magazine are published under Ichijinsha's Rex Comics (REXコミックス, REX Komikkusu) imprint.

Notable titles

 * Masamune-kun's Revenge
 * Kannagi
 * My Wife is the Student Council President!
 * Shomin Sample
 * The iDOLM@STER
 * Himegoto
 * Yatogame-chan Observation Diary