Jacksonville State University (JSU) is a regional public coeducational university located in Jacksonville, Alabama, USA. Founded in 1883, Jacksonville State offers programs of study in five academic units leading to Bachelor's, Master's, Education Specialist, and Doctorate in addition to continuing and distance education programs. In the Fall semester of 2011, JSU began offering the school's first doctoral degree, Doctor of Science in Emergency Management.

The university was founded as Jacksonville State Normal School, and in 1930 the name changed to Jacksonville State Teachers College, and again in 1957 to Jacksonville State College. The university began operating as Jacksonville State University in 1967. In 2008, the university celebrated its 125th anniversary.

JSU currently has an enrollment of nearly 9,000 students, with nearly 500 faculty members (more than 320 of whom are full-time). Jacksonville State's Business School was ranked within the nation's 90th percentile by the Princeton Review. The current University President is Dr. John M. Beehler.