Glenn Dicterow (born December 23, 1948) is an American violinist and former concertmaster of the New York Philharmonic Orchestra. He is on the faculty of the University of Southern California's Thornton School of Music where he holds the Jascha Heifetz Chair in violin as well as serving as a faculty artist at the Music Academy of the West.

He joined the Los Angeles Philharmonic as Associate Concertmaster in 1971, later assuming the role of Concertmaster in 1973. His tenure with the New York Philharmonic began in 1980 and lasted until 2014. Dicterow holds the record as the New York Philharmonic's longest-serving concertmaster, holding the role for 34 years.

Dicterow's accolades include winning the Young Musicians Foundation Award and Coleman Award (Los Angeles), The Julia Klumpke Award (San Francisco), and the Bronze Medal in the International Tchaikovsky Competition (1970). He is a graduate of the Juilliard School, where he was a student of Ivan Galamian.