Portland Chamber Orchestra
| Portland Chamber Orchestra | |
|---|---|
| Orchestra | |
| Founded | 1946 |
| Location | Portland, Oregon |
| Concert hall | Kaul Auditorium, Reed College |
| Principal conductor | Deanna Tham |
| Website | www |
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.