George W. Keister (January 10, 1859 - December 27, 1945) was an American architect. His work includes the Hotel Gerard (1893), Astor Theatre (1906), Belasco Theatre (1907), the Apollo Theater (1914), the Bronx Opera House (1913), the Selwyn Theatre (1918), now known as American Airlines Theatre, and the First Baptist Church in the City of New York. He also designed at 431 Riverside Drive (1901), which faced demolition in 1996, and the Sigma Chi Fraternity at 565 W. 113th St. (1903).