Siena Heights University (SHU) is a Roman Catholic postsecondary institution in Adrian, Michigan. It is affiliated with the St. Joseph Academy and Montessori Children’s House. The institution was founded in 1919 as St. Joseph's College for Women by the Adrian Dominican Sisters. In 1939, it was renamed as Siena Heights College after Saint Catherine of Siena. In 1969, it became coeducational. In 1998, it was renamed as Siena Heights University. The main campus is 55 acres with 14 buildings in Adrian, Michigan. The main campus has the distinction of being the first all wireless college or university in the state of Michigan. There are satellite campuses in Southfield, Benton Harbor, Monroe, Battle Creek, Lansing, Jackson, Ann Arbor, and Port Huron. Siena Heights is affiliated with and sponsored by the Dominican Sisters of Adrian, Michigan, accredited by the North Central Association of Colleges and Schools (NCACS). The institution is closely associated with the St. Joseph Academy and Montessori Children’s House. The college seal uses the Dominican Shield of the International Order of Preachers, consisting of four white and four black gyrons or triangles.