Ubisoft Entertainment (formerly Ubi Soft) is a French computer and video game publisher and developer with headquarters in Montreuil-sous-Bois, France. The company has facilities in over 20 countries, including development studios in Montréal and Québec City, Quebec, Canada; Barcelona, Spain; Shanghai, China; North Carolina, USA; Düsseldorf, Germany; Sofia, Bulgaria; Bucharest, Romania; Casablanca, Morocco and Milan, Italy, amongst other locations. As of 2004, it is the third-largest independent video game publisher in Europe, and the seventh largest in the US.

The correct pronunciation of the company name is yoo-be-soft, though it is also commonly mispronounced "o¨­-bi-s¨»ft".