The Adelphi Theatre was a Broadway theater at 152 West 54th Street in Midtown Manhattan, New York City, with 1,434 seats. Opened on December 24, 1928, the theater was taken over by the Federal Theater Project in 1934 and renamed the Adelphi. The theater was renamed the Radiant Center by The Royal Fraternity of Master Metaphysicians in 1940. It was then the Yiddish Arts Theater (1943), and renamed the Adelphi Theater on April 20, 1944, when it was acquired by The Shubert Organization.