The Mummer Cave was a cave located on the Mid Rim world of Naboo. Nestled deep within the Gallo Mountains, a short distance west of the city of Dee'ja Peak, the cave was used as a base of operations for the criminal organization known as the Mummers during the time of the Galactic Civil War. In 1 ABY, Tanoa Vills dispatched a spacer to the cave in order to get an from Mummer scientists. This allowed Vills to build a sequencer that can be used in a Stonewall Labs security beacon. Around the same time, Sergeant Eom Nia ordered a young cadet to attack the Mummers in the cave as part of his officer combat training.
The Mummer Cave was a location in the 2003 video game Star Wars Galaxies, a massively multiplayer online roleplaying game developed by Sony Online Entertainment and published by LucasArts, prior to its closure on December 15, 2011. The Mummer Cave was added to the game as part of the "Legacy Quest," released with the "Publish 25," a.k.a. the "New Game Enhancements," on November 15, 2005.