The Oregon Unification Bill was passed in 1929 by the Legislative Assembly, which placed the school under the oversight of the newly formed Oregon State Board of Higher Education. A doctoral in education was first offered in the early 1930s, with the conferral of four Doctor of Philosophy degrees in 1935. This year also saw the creation of the first summer session. The growing diversity in degree programs led to another name change in 1937, when the college became Oregon State College.

The university's current title, Oregon State University, was adopted on March 6, 1961, by a legislative act signed into law by Governor Mark Hatfield.