Chicago State University (CSU) is a public university in Chicago, Illinois, United States.

Founded in 1867 as Cook County Normal School by the Cook County Board of Commissioners, it was established as the first teacher training school in Cook County. In 1949, when it was known as Chicago Teachers College, the institution was divided into two branches, with one eventually becoming Northeastern Illinois University. The state government of Illinois began funding the institution in 1951 and assumed full control in 1965. It was renamed the current name in 1971. CSU is a predominantly black (PBI) university. As of 2025, CSU had an 11 percent graduation rate within a four-year period of study.