Montalvo may refer to:

Places
California
Montalvo Arts Center (Villa Montalvo), a non-profit center in Saratoga, California, United States
West Montalvo Oil Field, near Oxnard, California, US

Ventura
Montalvo, Ventura, California, a former village in Ventura County, California, founded in 1887, now part of the city of Ventura, California
East Ventura (Metrolink station) (formerly known as "Montalvo"), a Metrolink rail station in the city of Ventura, California, US

Elsewhere
Montalvo (Constância), a parish in the municipality of Constância, Portugal
Montalvo, Ecuador‘, the capital of Montalvo Canton, Los Ríos Province, Ecuador

People
Abelardo Montalvo (1876–1950), President of Ecuador from October 1933-September 1934
Agustin de Hinojosa y Montalvo, O.F.M. (1575–1631), Spanish Roman Catholic Bishop of Nicaragua (1630–1631)
Alonso Díaz de Montalvo (1405–1499), Spanish jurist
Bartolomé Montalvo (1769–1846), a Spanish painter
Benito Montalvo (born 1985), Argentine footballer
Carlos Montalvo, Cuban sprint canoer
Drew G. Montalvo, American-born DJ and music producer
Edilberto Jesús Buenfil Montalvo (born 1938), Mexican politician from the IRP
Eleonora Ramirez di Montalvo (1602–1659), Italian educator, author, and poet
Eric Montalvo, American lawyer
Felix  Montalvo, athlete in the 2010 Central American and Caribbean Junior Championships
Francisco José Montalvo y Ambulodi Arriola y Casabant Valdespino (1754–1822), Spanish soldier, colonial administrator and politician
Gabriel Montalvo Higuera (1930–2006), Roman Catholic archbishop and Vatican nuncio to the United States
Garci Rodríguez de Montalvo (c. 1450–1505), a Spanish writer who coined the name "California"
Genie Montalvo (born 1951), Puerto Rican actress, director, producer and author
Gregorio de Montalvo Olivera, O.P. (1529–1592), Roman Catholic Bishop of Cuzco (1587–1592) and then Bishop of Yucatán
Jeff Montalvo (born 1987), an American music producer
José Montalvo (choreographer)(born 1954), French dancer and choreographer
José Leandro Montalvo Guenard (1885–1950), Puerto Rican physician, inventor, anthropologist and historian
José Luis Montalvo (1946–1994), Chicano writer, poet, and community activist
José Luis Montalvo (1946–1994), a Chicano writer, poet, and community activist
José Montalvo (choreographer), a French choreographer
José Ramón Hinojosa Montalvo (born 1947), Spanish historian and Professor of Medieval History at the University of Alicante
Juan Bustillos Montalvo (born 1955), Mexican politician affiliated with the Institutional Revolutionary Party
Juan Jiménez de Montalvo (1551–?), interim viceroy of Peru from 1621 to 1622
Juan Montalvo (1832–1889), a famous Ecuadorian author and essayist
Juan Montalvo (bishop), O.P. or Juan de Montalvo (died 1586), Roman Catholic Bishop of Cartagena (1578–1586)
Jesús Manuel Patrón Montalvo (born 1957), Mexican politician from the Institutional Revolutionary Party
Laura Montalvo (born 1976), Argentine former professional female tennis player
Maria de las Mercedes Santa Cruz y Montalvo  (1789–1852), Cuban author
Miguel Montalvo (born 1943), Cuban basketball player
Niurka Montalvo (born 1968), Spanish athlete
Óscar Montalvo Finetti (born 1937), Peruvian former football player
Paco Montalvo (born 1992), Spanish classical musician and creator of flamenco violin as the main voice
Pedro Montalvo Gómez (born 1968), Mexican politician from the Institutional Revolutionary Party
Rafael Montalvo (born 1964), a Major League Baseball pitcher
Ramón Montalvo Hernández (born 1974), Mexican politician affiliated with the PRD
Victorio Montalvo Rojas (born 1966), Mexican lawyer and politician affiliated with the PDR
Yolanda del Carmen Montalvo López (born 1960), Mexican politician from the National Action Party
Yuvanna Montalvo (born 1988), Venezuelan model and actress