Castro is a Romance (Italian, Portuguese, Spanish and Galician) surname coming from Latin castrum, a fortification. The English equivalent is Chester. Notable people with the surname include:
Alicia Castro (born 1949), Argentine diplomatAlvaro Castro (born 1989), Argentine developerAmérico Castro (1885–1972), Spanish historianÁngel Castro y Argiz (1875–1956), father of Cuban leaders Fidel and Raúl CastroAriel Castro (1960–2013), Puerto Rican American kidnapper and rapistArles Castro (born 1979), Colombian track and road cyclistArturo Castro (1918–1975), Mexican actor of film and televisionAureo Castro (1917–1993), Macanese–Portuguese composer, musician and teacherBalthazar (Isaac) Orobio de Castro, (c.1617–1687) Jewish philosopherBernadette Castro (born 1944), U.S. politicianCarlos Castro Mora (born 1978), Costa Rican footballerCarlos Castro Borja (born 1967), Salvadoran footballerCésar Castro (born 1982), Brazilian diverCipriano Castro (1858–1924), President of VenezuelaCrispin Castro Monroy (born 1936), Mexican politicianDaniel Castro (born 1992), Mexican baseball playerDavid Castro (born 1964), Brazilian swimmerDavid Castro (actor) (born 1996), American actorDionísio Castro (born 1963), Portuguese long-distance runnerDomingos Castro (born 1963), Portuguese long-distance runnerEdmond Castro, Belizean politicianEduardo Castro (born 1954), Mexican long-distance runnerEduardo Viveiros de Castro (born 1951), Brazilian ethnologistElizabeth Castro, U.S. writer on web sitesFernando Castro Pacheco (1918–2013), Mexican artistFidel Castro (1926–2016), former President of CubaFrancisco Castro (disambiguation), multiple peopleGabriel Castro Root, (born 2002), child prodegyGermán Castro Caycedo (born 1940), Colombian journalist and writerGonzalo Castro (born 1987), German footballerGonzalo Castro Irizábal (born 1984), Uruguayan footballerGuillén de Castro y Bellvis (1569–1631), Spanish dramatistHéctor Castro (1904–1960), Uruguayan footballerHenri Castro (1786–1865), pioneer of the Republic of TexasInês de Castro (1325–1355), Galician noblewoman and Queen of Portugal after her deathJason Castro (baseball) (born 1987), U.S. baseball playerJason Castro (singer) (born 1987), U.S. singerJayson Castro (born 1986), Filipino basketball playerJoaquín Castro (born 1974), American politicianJorge Castro (boxer) (born 1967), Argentine boxerJosé Castro (1808–1860), Mexican general governor of Alta CaliforniaJosé Antonio Castro (born 1980), Mexican footballerJuan Castro (born 1972), Mexican baseball playerJuan José Castro (1895–1968), Argentine composerJuanita Castro (born 1933), Cuban revolutionary, sister of Fidel and Raul CastroJulian Castro (born 1974), American politicianJulián Castro (1810 – 1875), President of VenezuelaLuciano Castro (born 1975), Argentine actorLuz Dary Castro (born 1978), Colombian shot putter and discus throwerMarco Castro (born 1976), a Peruvian American film directorMariela Castro (born 1962), Cuban LGBT and sex education activist, and daughter of Raúl CastroMauricio Castro (born 1981), Honduran footballerMichael Castro, American poetMiguel Castro (born 1994), Dominican professional baseball playerNelson Castro (politician), a member of the New York State AssemblyNelson Castro (weightlifter) (born 1974), Colombian weightlifterNoli de Castro (born 1949), Filipino politicianOscar Castro-Neves (1940–2013), Brazilian musicianPablo Castro (born 2001), dancerRamón Castro (Cuban revolutionary) (1924-2016), brother of Fidel and Raul CastroRamón Castro (born 1976), U.S. baseball playerRamón Castro Jijón (1915–1984), military ruler of EcuadorRaquel Castro (born 1994), American actressRaul Hector Castro (1916–2015), U.S. politicianRaúl Castro (born 1931), current President of CubaRoberto Michael Castro (born 1989), Ecuadorian footballerRosalía de Castro (1837–1885), Spanish Galician language writer and poetSal Castro (1933–2013), Mexican-American educator and activistSaleta Castro (born 1989), a Spanish (Galician) triathleteSalvador Castaneda Castro (1888–1965), Salvadorian politicianSheilla Castro (born 1983), Brazilian volleyball playerStarlin Castro (born 1990), Dominican baseball playerVerónica Castro (born 1952), Mexican actressZulema Castro de Peña (c. 1920–2013), Argentine activist