- Source: 2002 Maryland county executive elections
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The Maryland county executive elections of 2002 took place on November 5, 2002, with the primary election occurring on September 10, 2002.
Anne Arundel County, Baltimore County, Harford County, Howard County, Montgomery County, and Prince George's County elected county executives.
Anne Arundel County
= Democratic primary
=Candidates
= Nominee =
Janet S. Owens, incumbent county executive
Results
= Republican primary
=Candidates
= Nominee =
Phillip D. Bissett, state delegate from the 30th district (1991–present)
= Eliminated in primary =
Tom Angelis
Results
= General election
=Results
Baltimore County
= Democratic primary
=Candidates
= Nominee =
James T. Smith Jr., former associate judge of the Baltimore County Circuit Court (1985–2001)
= Eliminated in primary =
Joseph Walters Jr.
Results
= Republican primary
=Candidates
= Nominee =
Douglas B. Riley, member of the Baltimore County Council from the 4th district (1998–present)
Results
= General election
=Results
Harford County
= Republican primary
=Candidates
= Nominee =
James M. Harkins, incumbent county executive
= Eliminated in primary =
Ronald Roz, management systems consultant
Results
= Democratic primary
=Candidates
= Nominee =
Paul Gilbert, former director of the Office of Economic Development (1990–1998)
Results
= General election
=Results
Howard County
= Democratic primary
=Candidates
= Nominee =
James N. Robey, incumbent county executive
Results
= Republican primary
=Candidates
= Nominee =
Steven H. Adler, businessman
= Eliminated in primary =
Clark J. Schoeffield, telecommunications executive
Results
= General election
=Results
Montgomery County
= Democratic primary
=Candidates
= Nominee =
Doug Duncan, incumbent county executive
= Eliminated in primary =
William E. Legat
Results
= Republican primary
=Candidates
= Nominee =
Eric Anderson
= Eliminated in primary =
Jorge Ribas
Shelly Skolnick
Results
= General election
=Results
Prince George's County
= Democratic primary
=Candidates
= Nominee =
Jack B. Johnson, Prince George's County State's Attorney (1995–present)
= Eliminated in primary =
Rushern Baker, state delegate from district 22B (1994–present)
M. H. Jim Estepp, county councilmember (1994–present)
C. Anthony Muse, former state delegate from the 26th district (1995–1999)
Major Riddick, former chief of staff to Governor Parris Glendening
Results
= Republican primary
=Candidates
= Nominee =
Audrey E. Scott, county councilmember (1994–present)
= Eliminated in primary =
J. Mitchell Brown
Results
= General election
=Results