Alma Gluck was an opera singer who specialized in the works of composer Christoph Willibald Gluck. She was born Reba Feinsohn in Romania in 1884 and moved to the United States in 1889. She began her career as a concert singer in 1906 and made her operatic debut in 1908. She was best known for her performances of Gluck's operas, and she was the first to record his arias. She retired from the stage in 1921 and died in 1938.