The following is a list of elections, both federal and local, took place in Mexico during 2003.
6 July 2003
Federal Congress
- Chamber of Deputies – 500 federal deputies
Colima
- Governor, state congress, and mayors
- See: 2003 Colima state election
Nuevo León
- Governor, state congress, and mayors
- See: 2003 Nuevo León state election
Sonora
- Governor, state congress, and mayors
- See: 2003 Sonora state election
7 December 2003
Colima
- Re-run of annulled gubernatorial race
- See: 2003 Colima state election
See also
- Politics of Mexico
- List of political parties in Mexico