The valahorn was a type of musical instrument that was similar in appearance and sound to a Kloo horn. It was discovered in 1 ABY by an archaeological team that was investigating the Massassi Temples on Yavin 4. Although its origin was unknown, they theorized that it had been taken to Yavin 4 during the Great Sith War.
The valahorn was an item in the 2003 video game Star Wars Galaxies, a massively multiplayer online role-playing game developed by Sony Online Entertainment and published by LucasArts, prior to its closure on December 15, 2011. The valahorn was added to the game with the release of the "Game Update 2," on March 13, 2008.