Greg Cox is an American politician and businessman who served as a member of the San Diego County Board of Supervisors from 1995 to 2020, representing District 1.

[9] He was the sole dissenter in a 2018 Board of Supervisors vote siding with the administration of President Donald Trump against California's sanctuary state law, Senate Bill 54; Cox called the vote a waste of money, and expressed the concern that it could increase distrust of law enforcement.

[10][11] In 2016, he reported himself to a watchdog group and paid a $3,000 fine after realizing he had failed to disclose a conflict of interest relating to a vote on a permit for SeaWorld San Diego, in which his wife, Cheryl Cox—also a former mayor of Chula Vista—held stock.

[12] In campaigns, he has stressed his support for the development project in the Chula Vista Bayfront, for law enforcement, and for environmental protection regulations.

[13] Cox's constituency, District 1, includes the cities of Coronado, Imperial Beach, Chula Vista, National City and communities within San Diego including Barrio Logan, Chollas View, Grant Hill, La Playa, Lincoln Park, Logan Heights, Memorial, Mount Hope, Mountain View, Nestor, Otay Mesa, Palm City, Point Loma, San Ysidro, Shelltown, Sherman Heights, Southcrest, Stockton, Sunset Cliffs and parts of downtown San Diego.