The Park Square Theatre (1915-1921) of Boston, Massachusetts, was a theatre in Park Square owned by Archibald and Edgar Selwyn. It occupied the former Cort Theatre in a building designed by architect Clarence Blackall. In 1921 "Selwyn's Park Square Theatre [was] renamed the Selwyn. ... In renaming the theatre, the owners ... made it one of a chain of Selwyn theatres in the United States." In time the building "was replaced by a huge parking garage for automobiles."
^"In August 1915, New York's Selwyn Group took over the Cort, renaming it the Park Square Theatre." King, Donald C. (2005), The theatres of Boston, Jefferson, N.C: McFarland & Co., ISBN0-7864-1910-5, 0786419105