Senator Martinez (or Martínez) may refer to:
Argentina Alfredo Martínez (politician) (born 1951), senator for Santa Cruz in 2005–2017 Ernesto Félix Martínez (born 1956), senator for Córdoba in 2015–2021 José Carlos Martínez (politician) (1962–2011), senator for Tierra del Fuego in 2007–2011 Julio Martínez (Argentine politician) (born 1962), senator for La Rioja in 2017–2023 María Rosa Martínez (born 1955), member of the Buenos Aires Provincial Senate since 2023
Chile Carlos Alberto Martínez (politician) (1885–1972) Ignacio Martínez Urrutia ()
Mexico Alberto Miguel Martínez Mireles (born 1950), senator for San Luis Potosí in 1982–1988 Alfonso Martínez Domínguez (1922–2002), senator for Nuevo León in 1988–1994, national-list senator in 1997–2000 Germán Martínez Cázares (born 1967), national-list senator in 2018–2024 Gonzalo Martínez Corbalá (1928–2017), senator for San Luis Potosí in 2000–2006 Higinio Martínez (born 1956), senator for the State of Mexico since 2018 Ifigenia Martínez (1925–2024), national-list senator in 2018–2024 Irma Martínez Manríquez, national-list senator in 2007–2010 Jose María Martínez Martínez (born 1972), senator for Jalisco in 2012–2018 María Verónica Martínez Espinoza (born 1949), senator for Jalisco in 2013–2018 Mayuli Martínez (born 1984), senator for Quintana Roo since 2018 Patricio Martínez García (born 1948), senator for Chihuahua in 2012–2018 Sylvia Martínez Elizondo (1947–2020), senator for Chihuahua in 2016–2018
Paraguay Esperanza Martínez (politician) (born 1959), senator since 2013
Spain Ana Martínez Zaragoza (born 1981), senator for Alicante since 2019 Antonio Martínez Rodríguez (born 1980), senator for Almería since 2020 Isidro Martínez Oblanca (born 1956), senator for Asturias in 1996–2004 and 2011–2015
United States and territories Ángel Chayanne Martínez (born 1964), Senate of Puerto Rico Frank Martínez (politician) (1884–1966), Senate of Puerto Rico Iris Martinez (born 1956), Illinois State Senate Mel Martínez (born 1946), U.S. senator from Florida in 2005–2009 Monica Martinez (born 1977), New York State Senate Rafael Martínez Nadal (1877–1941), Senate of Puerto Rico Richard Martinez (politician) (born 1953), New Mexico State Senate
Uruguay Rubén Martínez Huelmo (1949–2025), senator in 2015–2020