123Movies, GoMovies, GoStream, MeMovies or 123movieshub was a network of file streaming websites operating from Vietnam which allowed users to watch films for free.

It was called the world's "most popular illegal site" by the Motion Picture Association of America (MPAA) in March 2018,[3][6] before being shut down a few weeks later on foot of a criminal investigation by the Vietnamese authorities.

[15][16][17] In October 2017, the MPAA listed 123Movies (and GoStream.is) in its Online Notorious Markets overview to the Office of the United States Trade Representative, stating that while the site was technically hosted from Ukraine that: "The site takes numerous steps to hide the identity of the operator, including using Cloudflare, but there is strong reason to believe the operator is still in Vietnam; content is uploaded using cyberlockers from numerous email accounts originating from Can Tho University of Medicine and Pharmacy".

[3][6] On 19 March 2018, a note on the site's home page announced its shutdown, and urged users to "respect filmmakers by paying for movies and TV-shows".

[7][17] In October 2018, the MPAA's update on Online Notorious Markets to the United States Trade Representative, said that the closure of 123movies, 123movieshub, gostream, and gomovies, on foot of a criminal investigation in Vietnam in 2018, was "an important development" in combatting illegal film piracy services.