Polyhedron 157 is an issue of Polyhedron magazine. It appeared as part of Dungeon Magazine 98 in May 2003. It featured the article "I, Jensaarai" by Rodney Thompson with illustrations by Ramón Perez, and an addon to Wizards of the Coast's sourcebook Starships of the Galaxy about the Wayfarer-class medium transport by Christopher West and JD Wiker with illustration by Jeff Carlisle.