Arne Oldberg (July 12, 1874 – February 7, 1962) was an American pianist, composer, and teacher. He spent his career on the faculty of Northwestern University (1897–1941), where he taught piano and composition and, from 1924 until his retirement in 1941, served as director of the graduate department of the Music School. Among his students were composers Howard Hanson, Cecilia Clare Bocard, Theodora Troendle, Mildred Lund Tyson, and Ella May Walker.