The Byham Theater is a landmark building at 101 Sixth Street in the Cultural District of Downtown Pittsburgh, Pennsylvania, United States.

Built in 1903 and opened Halloween night 1904, the then-named Gayety Theater was stage and vaudeville house, and it featured stars such as Ethel Barrymore, Gertrude Lawrence, and Helen Hayes.

It was renamed The Fulton in the 1930s when it became a full-time movie theater.

For the 50th anniversary of the Bill Mazeroski's series winning home run, the first public showing of the Game 7 tape discovered in December 2009 was hosted by Bob Costas at the theater on November 13, 2010 at 6 p.m. Mazeroski was joined by Pirate MVP Dick Groat and former Yankee Bobby Richardson to be interviewed during the showing of the game.

MLB Network then telecast the game and interviews nationally.