University of Siena
- Country: Italy
- Type: Education
- Website: www.unisi.it
- Update: 05-02
The University of Siena (Università degli Studi di Siena) is an Italian public university located in Siena, founded in 1240, one of the oldest universities in Europe and a member of the Coimbra Group. The University of Siena's law school and medical school have a high reputation in Europe.