People United States of America Greg Ahern peoplepill id: greg-ahernGA 21 views today 21 views this weekAmerican law enforcement officerGreg AhernBiographyListsAlso ViewedListsGreg Ahern is in following listsBy work and/or countryNotable American OfficersGender:MaleBy category1950s birthsAlameda County, California sheriffsSaint Mary's College of California alumniFrom our partnersSponsoredGreg Ahern