Atlus USA

Atlus West
Trade name	Atlus
Formerly	Previous divisions Atlus Software Inc. (1991–1997); Atlus Co., Ltd. (1996–1999); Current company Atlus U.S.A., Inc. (1999–2010); Index Digital Media, Inc. (2010–2014); Atlus USA (2014–2019); Atlus West (2019–present);
Company type	Subsidiary
Industry	Video games
Founded	January 18, 1991
Headquarters	Irvine, California, U.S.
Key people	Naoto Hiraoka (president, CEO); Mitsuhiro Tanaka (general manager);
Parent	Atlus; (1991–2010); Index Corporation; (2010–2013); Sega of America; 2013–present;

Atlus West, formerly known as Atlus U.S.A., Inc., is the North American publishing branch of Japanese video game company Atlus, primarily known for localizing games for both them and other third-party developers. Its first original role-playing game was Revelations: Persona on the PlayStation, described by staff as an attempt to break into the Western role-playing game market and establish the company's Megami Tensei franchise through its Persona sub-series.

The company was founded in 1991 as a North American publishing branch for Atlus to break into the role-playing video game market at the time. In November 2013, Atlus USA was restructured to be governed under Sega of America after Sega Sammy acquired their parent company through Index Corporation. Despite the publishing divisions merging, Sega and Atlus continued to operate as separate entities, with all existing Atlus franchises remaining under their pre-established Atlus brand.

Atlus West is notable in its localization approach in preserving as much of the original material as possible, including any cultural references. Outside of being the American publishing subsidiary for the Japanese parent developer, Atlus West acts as an English localizer and publisher for Japanese games, similarly to Aksys Games, NIS America, and Xseed Games. In addition to their own properties, Atlus West's localization and publishing efforts has introduced several notable third-party games to the West including Demon's Souls and the Ogre Battle and Guilty Gear series.