Guerreiro is a Galician and Portuguese word for "warrior". It can be found as a surname in Portuguese-speaking countries.
Notable people with the surname include:
Ana Maria Guerreiro Dias (born 1974), Portuguese long-distance and marathon runnerAndré Guerreiro Rocha (born 1984), Brazilian footballerBruno Miguel Guerreiro Costa (born 1986), Portuguese footballer (goalkeeper)Carlos-Manuel Alho Guerreiro (born 1983), Belgian football refereeDavid Pedrosa Guerreiro (born 1993) Portuguese footballer (midfielder) better known as PeixinhoDiogo Filipe Guerreiro Viana (born 1990), Portuguese footballer (winger)Fabrício Guerreiro (born 1990), Brazilian mixed martial artistFélix Guerreiro (born 1950), Portuguese footballer (forward)Jonathan Guerreiro (born 1991), Russian-Australian ice dancerJorge Manuel Guerreiro Soares (born 1971), Portuguese footballer (centre back)Katia Guerreiro (born 1976), Portuguese singerLeandro Guerreiro (born 1978), Brazilian footballer (defensive midfielder)Marcinho Guerreiro (born 1980), Brazilian footballer (defensive midfielder)Márcio Guerreiro (born 1981), Brazilian footballer (midfielder)Pedro Guerreiro de Jesus Correia (born 1987), Portuguese footballer (defender)Pedro Guerreiro (born 1966), Portuguese politicianRamiro Saraiva Guerreiro (1918–2011), Brazilian politician and diplomatRicardo Augustus Guerreiro Baptista Leite (born 1980), Portuguese-Canadian politicianRaphaël Guerreiro (born 1993), Portuguese footballerRoger Guerreiro (born 1982), Brazilian-Polish footballer (midfielder)Rui Manuel Guerreiro Nobre Esteves (born 1967), Portuguese footballer (midfielder)Toninho Guerreiro (1942–1990), Brazilian footballer (forward)