Gohatto (御法度), also known as Taboo, is a 1999 Japanese film directed by Nagisa Ōshima. Its subject is homosexuality in the Shinsengumi during the bakumatsu period, the end of the samurai era in the mid-19th century. The production was Õshima's final film before his death, thirteen years after Gohatto's premiere.

Nagisa Ōshima was a Japanese film director and screenwriter. One of the foremost directors within the Japanese New Wave, his films include In the Realm of the Senses (1976), a sexually explicit film set in 1930s Japan, and Merry Christmas, Mr. Lawrence (1983), about World War II prisoners of war held by the Japanese.