The Phlebiac Brothers are antagonists appearing in the Spawn comic book series.

Dubbed the "true denizens of Hell," the Phlebiac brothers are five powerful demonic beings, servants of Malebolgia.

The Violator claims they were born of human mothers, but sired by a full-blooded demon from Hell, apparently for a project of John Dee; and that he, the eldest son, later killed their father.

[1] In an alternate future of the year 2015, the brothers are corrupt police officers and henchman of Spawn, who has become a murderous dictator.

[2] The Phlebiac Brothers appears in the video game Spawn: In the Demon's Hand as playable characters and as cameos in Spawn's ending in Mortal Kombat 11.