Eastern Illinois University (EIU) is a public university in Charleston, Illinois. Established in 1895 as the Eastern Illinois State Normal School, a teacher's college offering a two-year degree, Eastern Illinois University gradually expanded into a comprehensive university with a broad curriculum, including bachelor's and master's degrees in education, business, arts, sciences, and humanities.

Charleston is a city in, and the county seat of, Coles County, Illinois, United States. The population was 17,286, as of the 2020 census. The city is home to Eastern Illinois University and has close ties with its neighbor, Mattoon. Both are principal cities of the Charleston–Mattoon Micropolitan Statistical Area.