Maria Martinez (1887–1980) was a Native American artist and potter.
Maria Martinez may also refer to:
- María Martínez (fencer) (born 1983), Venezuelan fencer
- María Martínez (footballer) (born 1999), Paraguayan footballer
- María de Jesús Patricio Martínez (born 1963), Mexican traditional medicine healer and human rights activist
- María Isabel Martínez (born 1967), former field hockey player from Spain
- María Sornosa Martinez (born 1949), Spanish politician and Member of the European Parliament
- María Cristina Martínez Córdoba, Argentine lawyer
- María José Martínez Sánchez (born 1982), Spanish tennis player
- María Martínez Santillán (born 1963), Mexican politician
- Marie Seznec Martinez, French stylist and fashion model
- Maria Elena Martinez, historian of colonial Mexico
- Maria Ramita Martinez, Picuris Pueblo potter
- Maria Martínez (singer), Cuban guitarist and singer
- María Antonia Martínez, Spanish politician
- María Martínez (volleyball), Colombian volleyball player
- María Rosa Martínez, Argentine trade unionist and politician
- María Martínez (journalist), Argentine journalist, television presenter, actress and model
- María Dolores Martínez (born 1970), Spanish weightlifter
- María Belen Martínez, Argentine weightlifter