The University of Cadiz, commonly referred to as UCA, is a public university located in the province of Cadiz (southern Spain), particularly noted for its marine sciences curricula. It houses around 20,000 students, 1700 lecturers, and 700 administration and services workers.

The University of Cadiz is coordinator of CEIMAR, a consortium of Spanish, Portuguese and Moroccan universities as well as research institutes, technology parks, businesses and other organizations located around the Strait of Gibraltar and involved in the training, research and innovation related to the sea.