| Office: | Mayor of Sunnyvale |
| Termstart: | 1924 |
| Termend: | 1926 |
| Termstart2: | 1920 |
| Termend2: | 1948 |
| Office2: | Member of Sunnyvale City Council |
| Termstart1: | 1937 |
| Termend1: | 1938 |
Edwina Adaha Cochrane Benner (August 1, 1885 – May 14, 1955) was the mayor of Sunnyvale, California, from 1924 to 1926 and again from 1937 to 1938. She served as councilmember from 1920 until 1948.[1] Commonly described as the first female mayor in California, she was actually the second, after Ellen French Aldrich of Sawtelle, California—though Sawtelle had already been annexed by the city of Los Angeles by the time Benner was appointed mayor.[2]
In 1954, Sunnyvale School District opened the Edwina Benner Intermediate school, named in her honor. In 2017, affordable housing developer MidPen Housing broke ground on a new 66 unit affordable housing project in Sunnyvale, the Edwina Benner Plaza.[3]