Oregon State University (OSU) is a public land-grant, research university in Corvallis, Oregon, United States. Over 32,000 undergraduate and 5,000 graduate students are enrolled. The university offers programs in more than 200 undergraduate disciplines, and over 100 at graduate and doctoral levels through all 11 colleges. OSU is classified by the Carnegie Foundation as an R1 Doctoral University, designating it with, "very high research spending and doctorate production". As of 2025, OSU is home to the fifth-largest engineering college in the nation. In 2024, nearly 38,000 students were enrolled at OSU, making it the largest university in the state.