Mel Martínez (born 1946) was a U.S. Senator from Florida from 2005 to 2009. Senator Martinez may also refer to:
- Iris Martinez (born 1956), Illinois State Senate
- Monica Martinez (born 1977), New York State Senate
- Richard Martinez (politician) (born 1953), New Mexico State Senate
- Ángel Chayanne Martínez (born 1964), Senate of Puerto Rico
- Frank Martínez (politician) (fl. 1910s–1920s), Senate of Puerto Rico