| Walter W. Stiern | |
| Birth Date: | 8 March 1914 |
| Birth Place: | San Diego, California, U.S. |
| Death Place: | Bakersfield, California, U.S. |
| State Senate: | California |
| District: | 16th |
| Term: | December 2, 1974 – November 30, 1986 |
| Preceded: | George N. Zenovich |
| Succeeded: | Don Rogers |
| State Senate1: | California |
| District1: | 18th |
| Term1: | January 2, 1967 – November 30, 1974 |
| Preceded1: | Clark L. Bradley |
| Succeeded1: | Omer L. Rains |
| State Senate2: | California |
| District2: | 34th |
| Term2: | January 5, 1959 – January 2, 1967 |
| Preceded2: | Jess R. Dorsey |
| Succeeded2: | John G. Schmitz |
| Party: | Democratic |
| Children: | 2 |
| Education: | Bakersfield College Washington State University |
| Battles: | World War II |
Walter William Stiern (March 8, 1914 – February 21, 1988) was a Democratic California State Senator representing Kern County.
Although Stiern was born in San Diego, his family was originally from Bakersfield and moved back soon after he was born. Stiern attended Bakersfield College, then continued on to Washington State University where he received his Doctor of Veterinary Medicine. He returned to Bakersfield and set up a veterinary practice catering to the local agricultural community, taking a temporary leave to serve in World War II.
Stiern was elected to the State Senate in 1958, where he advocated on education, health and agricultural issues. He is primarily known for his work in the area of expanding California's higher education system: In 1960, he co-sponsored Assemblywoman Dorothy Donohoe's Donahoe Higher Education Act which reorganized the state's higher education system into the form it is in today: the "California State Colleges" (now known as the California State University system) was formally created as a statewide system, and from now on, the University of California, the state colleges, and the junior colleges were coordinated in their approach to providing higher education to the state's population.
Stiern became increasingly vocal during the 1960s about the fact that the junior colleges were the only segment of California public higher education which had not yet been integrated into a statewide system, and sponsored appropriate legislation to fix this.[1] In 1967, the passage of Stiern's bill led to the transformation of the junior colleges into the California Community Colleges system.
For his home district, Stiern's work in the Senate produced California State College, Bakersfield, which became California State University, Bakersfield. The Walter W. Stiern Library on the CSUB campus is named after him.