Frewwil, a world in the Frewwil system, was a planet found within the freestanding subsectors of the Expansion Region. Barosa Warren, a scout from the Republic Survey Corps, explored the harsh and unwelcoming Frewwil. By 2 ABY, over fifty years had passed, and the Galactic Empire governed Frewwil, deeming it among the most hazardous planets under their dominion.
Alliance Intelligence Reports, a sourcebook from 1995 for Star Wars: The Roleplaying Game by West End Games, initially referenced Frewwil. The Frewwil system, and thus Frewwil itself, was located in grid square I-14 by the reference book The Essential Atlas in 2009.