Marie Berg Tiffany (July 8, 1881 - April 12, 1948) was an American operatic soprano. She was a member of the Metropolitan Opera in Manhattan, New York City from 1916 to 1928; making a total of 208 appearances at the Met during her career. She created roles in several world premieres at the Met and was notably the only performer to appear in all three one act operas at the premiere of Giacomo Puccini's Il Trittico in 1918.