NBCUniversal Entertainment Japan LLC (Japanese: NBCユニバーサル・エンターテイメントジャパン合同会社, Hepburn: Enubīshī Yunibāsaru Entāteimento Japan Gōdō gaisha) (abbreviated as NBCUEJ) is a Japanese music, anime, and home entertainment production and distribution enterprise that is a subsidiary of NBCUniversal, owned by American telecommunications/media company Comcast headquartered in Akasaka, Minato, Tokyo. It is primarily involved in the production and distribution of anime within Japan.

The company was founded in March 1981 by Pioneer Corporation as LaserDisc Corporation, a LaserDisc player production company. In 1989, the company was renamed Pioneer LDC, Inc. as it branched into the anime, music, and film industries, and later Geneon Entertainment Inc. (after being acquired by Dentsu in 2003). In 2008, Geneon merged with Universal Pictures Japan to form Geneon Universal Entertainment Japan, LLC; in 2013, the company changed its name to the current NBCUniversal Entertainment Japan. Some of the well-known anime series the company has produced are A Certain Magical Index, The Heroic Legend of Arslan, Danganronpa: The Animation, Golden Kamuy, Seraph of the End, and The Quintessential Quintuplets among many others.

Despite the name, NBCUniversal Entertainment Japan does not distribute Universal Pictures films theatrically in Japan; Toho (through Toho-Towa) exclusively distributes them for Japanese theaters.