Jorja Kay Fleezanis (March 19, 1952 – September 9, 2022) was an American violinist and the Henry A. Upper Chair at Indiana University. Fleezanis grew up in Detroit, Michigan, the daughter of Greek immigrants. A graduate of Cass Technical High School, she studied at the Cleveland Institute of Music and the Cincinnati Conservatory and later won a position in the Chicago Symphony. Fleezanis was concertmaster of the Minnesota Orchestra from 1989 to 2009—the longest-tenured concertmaster in the orchestra's history and only the second woman in the U.S. to hold the title of concertmaster in a major orchestra when appointed. Prior to Minnesota, she was associate concertmaster with the San Francisco Symphony for eight years. In 1994, she premiered John Adams' Violin Concerto—a work commissioned for