Oklahoma State University (also referred to informally as
Oklahoma State,
OKState,
O-State, and
OSU) is a
land-grant,
sun-grant,
coeducational public research university located in
Stillwater,
Oklahoma, United States. OSU was founded in 1890 under the
Morrill Act. Originally known as
Oklahoma Agricultural and Mechanical College (
Oklahoma A&M), it is the flagship institution of the
Oklahoma State University System. Official enrollment for the fall 2010 semester system-wide was 35,073, with 23,459 students enrolled at OSU-Stillwater. Enrollment shows the Freshman class of 2012 was the largest on record with 4,298 students. OSU is classified by the
Carnegie Foundation as a research university with high research activity.