The University of Northern Iowa (UNI) is a public university in Cedar Falls, Iowa, United States. UNI offers more than 90 majors across five colleges. The fall 2024 total enrollment was 9,283 students.

The university was initially founded in 1876 as the Iowa State Normal School with the purpose of training school teachers and educators. The University of Northern Iowa is one of three public universities in Iowa, all of which are governed by the Iowa Board of Regents.

The University of Northern Iowa was founded as a result of two influential forces of the nineteenth century. First, Iowa wanted to care for orphans of its Civil War veterans, and secondly, Iowa needed a public teacher training institution. In 1876, when Iowa no longer needed an orphan home, legislators Edward G. Miller and H. C. Hemenway started the Iowa State Normal School.

The school's first building opened in 1867 and was known as Central Hall. The building contained classrooms, common areas, and a living facility for most of the students. It was also a home to the college's first principal, James Cleland Gilchrist. The building was the heart and soul of the school, allowing students to study courses of two-year, three-year, and four-year degrees. In 1965, a fire destroyed Central Hall, and school faculty and Cedar Falls citizens donated over $5,000 to start building Gilchrist Hall.

The school has been known under the following names:

From 2014 through 2018 the UNI hosted the Midwest Summer Institute: Inclusion and Communication for All, a two-day conference on facilitated communication sponsored by the Inclusion Connection and Syracuse University's Institute on Communication and Inclusion. Facilitated Communication is a discredited practice, and in 2018 UNI decided to discontinue the conference at the urging of multiple nationwide academics.

Since its founding, the university has had eleven presidents.

University of Northern Iowa colleges include: