Walter Martínez may refer to:
Walter K. Martinez (1930–1986), U.S. politician in the state of New Mexico Walter Martínez (journalist) (1941–2026), Venezuelan journalist Walter Martínez (sport shooter) (born 1967), Nicaraguan sport shooter Walter Martínez (footballer, born 1982) (1982–2019), Honduran football forward Walter Martínez (footballer, born 1991), Honduran football midfielder