Saint Elizabeth University (SEU) (formerly College of Saint Elizabeth, CSE) is a private Catholic university in Morris Township, New Jersey, United States. Portions of the campus are also in Florham Park. SEU offers 25 undergraduate degree programs, 16 master's degree programs, and 2 doctoral degree programs.

The College of Saint Elizabeth was founded in 1899 by the Sisters of Charity of Saint Elizabeth and was among the first Catholic colleges in the United States to award degrees to women. It is located in a complex which includes the order's motherhouse and convent, as well as a preparatory school for girls.

The college began transitioning into a co-educational institution, starting with the 2016 freshman intake. The final all-female class graduated in 2019. The institution was accorded university status by the New Jersey Department of Education as of July 1, 2020. It was the last women-only college in the state.

The school is named for St. Elizabeth, the cousin of Mary (mother of Jesus). The college was founded by the Sisters of Charity, the order started by Elizabeth Ann Seton (1774–1821), who, after her death, was canonized as the United States' first native-born saint. (Seton Hall University in New Jersey and Seton Hill University in Pennsylvania are named after Elizabeth Ann Seton.)

Saint Elizabeth University is located on the campus of the Sisters of Charity of Saint Elizabeth. The 200-acre (0.81 km²) wooded campus is home to the classical Greek amphitheater built into a hillside and the original dairy farm for the complex.

Part of the grounds are in Florham Park Borough. Other parts are in Convent Station, Morris Township.

The Convent Station of NJ Transit, located on the campus of Saint Elizabeth University, provides rail transportation both east and west of Convent Station. The trains are the midtown direct line of the Morris & Essex Lines.

Saint Elizabeth University has eight buildings: