Portland Chamber Orchestra

Portland Chamber Orchestra
Orchestra
Founded1946
LocationPortland, Oregon
Concert hallKaul Auditorium, Reed College
Principal conductorDeanna Tham
Websitewww.portlandchamberorchestra.org

The Portland Chamber Orchestra was an orchestra based in Portland, Oregon. It was considered the oldest chamber orchestra in the United States until it closed in 2026. Founded in 1946 by Boris Sirpo, and hosted its first performance on May 27, 1947 at the Neighbors of Woodcraft Auditorium. Its home venue was at Lewis & Clark College.