St. Mary's Academy (Portland, Oregon)
| St. Mary's Academy | |
|---|---|
| Location | |
1615 SW 5th Avenue , , 97201 United States | |
| Coordinates | 45°30′45″N 122°40′53″W / 45.51250°N 122.68139°W |
| Information | |
| Type | Private, All-Girls |
| Motto | We Believe |
| Religious affiliation | Roman Catholic |
| Established | 1859 |
| President | Emily Becker |
| Principal | Liane Rae |
| Faculty | 57 |
| Grades | 9–12 |
| Enrollment | 555 (2025-2026) |
| Average class size | 18 |
| Student to teacher ratio | 17:1 |
| Colors | Blue and white |
| Athletics conference | OSAA Three Rivers League 6A-5 |
| Mascot | Blues |
| Accreditation | Northwest Accreditation Commission |
| Publication | Escribe Maria (literary magazine), Imprint (alumnae magazine) |
| Website | stmaryspdx |
St. Mary's Academy is a Roman Catholic all-girls high school located in Portland, Oregon, United States. It was founded by twelve sisters from the Sisters of the Holy Names of Jesus and Mary in 1859. It is an all-girls school with approximately 680 students from northern Oregon and southwestern Washington. Since its founding, over 10,000 women have graduated from St. Mary's Academy, the oldest continuously-operating secondary school in Oregon.