Greg Ahern
Greg Ahern | |
|---|---|
| Sheriff of Alameda County, California | |
| In office January 2007 – January 2023 | |
| Preceded by | Charles Plummer |
| Succeeded by | Yesenia Sanchez |
| Personal details | |
| Alma mater | Saint Mary's College of California |
Gregory J. Ahern (b. 1957 or 1958 (age 67–68)) was the 22nd Sheriff of Alameda County, California, serving for four terms between 2007 and 2023, losing re-election in 2022 by 21.6% .