Ohio University (OHIO or OU) is a public research university with its main campus in Athens, Ohio, United States. Founded in 1804, it was the first university established in the former Northwest Territory. The university enrolled about 25,000 undergraduate and graduate students in Athens as of 2023. It maintains seven regional and extension campuses across Ohio. Ohio University comprises nine undergraduate colleges, a graduate college, a college of medicine, and a public affairs school. It offers more than 250 areas of undergraduate study as well as certificates, master's, and doctoral degrees.