Warren Olney | |
|---|---|
 | |
| Mayor of Oakland | |
| In office 1903–1905 | |
| Preceded by | Anson Barstow |
| Succeeded by | Frank K. Mott |
| Personal details | |
| Born | March 11, 1841 |
| Died | June 2, 1921 (aged 80) |
Warren Olney, Sr. (March 11, 1841 – June 2, 1921) was an American lawyer, conservationist, and politician, in California.
He was a founding member, alongside John Muir and the young botany professor, Willis Linn Jepson of the University of California at Berkeley, of the Sierra Club. From 1903 to 1905 he served as the 34th Mayor of Oakland, California.