Bay posted the title on his Instagram account Monday. The movie opens on June 23, 2017, with shooting starting next week in Cuba with part of the film to be shot in Detroit.
Director Bay said in January that he would return to direct the fifth installment in Paramount’s “Transformers” franchise.
Bay has directed the four movies in the franchise, which have grossed a combined $3.7 billion worldwide and are based on Hasbro’s toy line. Shia LaBeouf starred in the first three films.
The first “Transformers” opened on July 3, 2007, and the next three films launched in late June. “Transformers: Age of Extinction” grossed $245 million domestically and $858 million internationally in 2014.
Lorenzo di Bonaventura, Don Murphy and Tom DeSanto will produce “Transformers: The Last Knight” with Hasbro.