Oregon State University (OSU) is a public land-grant research university in Corvallis, Oregon, United States. The university enrolls over 32,000 undergraduates and 5,000 graduate students. OSU offers more than 200 undergraduate degree programs, and graduate and doctoral degrees through all of its 11 colleges. It has been classified by the Carnegie Foundation as an R1 Doctoral University, designating "very high research spending and doctorate production". As of 2025, OSU is home to the fifth-largest engineering college in the nation.