Greg Ahern | |
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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[1] |
Gregory J. Ahern (b. 1957 or 1958 (age 66–67))[2] was the 22nd Sheriff of Alameda County, California, serving for four terms between 2007 and 2023, losing re-election in 2022 by 21.6% .