Jim Desmond

Jim Desmond
Official portrait, 2023
Vice Chair of the San Diego County Board of Supervisors
In office
January 5, 2020 – January 5, 2021
Preceded byGreg Cox
Succeeded byNora Vargas
Member of the San Diego County Board of Supervisors
from the 5th district
Assumed office
January 7, 2019
Preceded byBill Horn
Mayor of San Marcos, California
In office
December 2006 – December 2018
Preceded byF.H. "Corky" Smith
Succeeded byRebecca Jones
Member of the San Marcos City Council
In office
2004–2006
Personal details
PartyRepublican
Children2
EducationSan Diego State University (BS)
Military service
Branch/service United States Navy

Jim Desmond is an American politician and retired aviator serving as a member of the San Diego County Board of Supervisors since 2019, representing the fifth district. A member of the Republican Party, he previously served as vice chair of the board from 2020 to 2021, mayor of San Marcos, California from 2006 to 2018, and as a member of the San Marcos city council from 2004 to 2006.

In 2025, Desmond announced his candidacy for California's 49th congressional district in the 2026 election. In 2026, he announced that he would instead run in California's 48th congressional district after been redistricted into the district by Proposition 50.