Accreditation is a voluntary system of self-regulation, supported by peer-review, in which an institution or program is assessed against a set of standards. The University of Oregon is regionally accredited by the Northwest Commission on Colleges and Universities (NWCCU) and also enjoys a number of specialized accreditations granted to colleges and programs by other national organizations.

The University of Oregon has been continuously accredited by the NWCCU since 1918 and was most recent reaffirmed in July 2017.
Specialized accreditation for individual schools, colleges, and educational programs is granted by a number of national organizations.