Old Central, historically known as the College Building, is the oldest building on the Oklahoma State University campus in Stillwater, Oklahoma. Originally built in 1894, it was the first permanent building on the Oklahoma A&M campus. Old Central's bell clapper once served as a traveling trophy in the Bedlam Series athletics rivalry between Oklahoma State University and the University of Oklahoma. The new "Bedlam Bell" is a crystal trophy modeled after Old Central's bell and is awarded to the winner of each individual athletics contest in addition to the overall series winner for each year.

Oklahoma State University–Stillwater is a public land-grant research university in Stillwater, Oklahoma. OSU was founded in 1890 under the Morrill Act. Originally known as Oklahoma Agricultural and Mechanical College, it is the flagship institution of the Oklahoma State University System that enrolls more than 34,000 students across its five institutions with an annual budget of $1.69 billion for fiscal year 2024. As of Fall 2023, 26,008 students are enrolled at the university. OSU is classified among "R1: Doctoral Universities – Very high research activity". According to the National Science Foundation, OSU spent $198.8 million on research and development in 2021.