John Monroe Van Vleck was an American mathematician and astronomer. He taught astronomy and mathematics at Wesleyan University for more than fifty years and served as the university's acting president twice. The Van Vleck Observatory at Wesleyan University and the lunar crater Van Vleck are named after him.
- Occupation
- mathematician, astronomer, university teacher
- Citizenship
- United States
- Born
- March 4, 1833
- Died
- November 4, 1912