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 runner
André Guerreiro Rocha (born 1984), Brazilian footballer
Bruno Miguel Guerreiro Costa (born 1986), Portuguese footballer (goalkeeper)
Carlos-Manuel Alho Guerreiro (born 1983), Belgian football referee
David Pedrosa Guerreiro (born 1993) Portuguese footballer (midfielder) better known as Peixinho
Diogo Filipe Guerreiro Viana (born 1990), Portuguese footballer (winger)
Fabrício Guerreiro (born 1990), Brazilian mixed martial artist
Félix Guerreiro (born 1950), Portuguese footballer (forward)
Jonathan Guerreiro (born 1991), Russian-Australian ice dancer
Jorge Manuel Guerreiro Soares (born 1971), Portuguese footballer (centre back)
Katia Guerreiro (born 1976), Portuguese singer
Leandro 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 politician
Ramiro Saraiva Guerreiro (1918–2011), Brazilian politician and diplomat
Ricardo Augustus Guerreiro Baptista Leite (born 1980), Portuguese-Canadian politician
Raphaël Guerreiro (born 1993), Portuguese footballer
Roger Guerreiro (born 1982), Brazilian-Polish footballer (midfielder)
Rui Manuel Guerreiro Nobre Esteves (born 1967), Portuguese footballer (midfielder)
Toninho Guerreiro (1942–1990), Brazilian footballer (forward)
