Boseman died at his home in the Los Angeles area with his wife and family by his side, his publicist Nicki Fioravante told The Associated Press.
Boseman was diagnosed with colon cancer four years ago, his family said in a statement. He had never spoken publicly about his diagnosis.
Chadwick Aaron Boseman was an American actor. His roles included important and iconic African-American historical figures such as Jackie Robinson in 42, James Brown in Get on Up, and Thurgood Marshall in Marshall.