Valentim is both a Portuguese surname and a given name. Notable people with the name include:
Surname Evangelino Valentim (born 1984), Nigerian footballer Valentim (footballer) (born 1977), full name Francisco de Assis Clarentino Valentim, Brazilian footballer Othon Valentim Filho (born 1944), Brazilian footballer Paulo Valentim (1933–1984), Brazilian footballer Paulo Valentim (guitarist), Portuguese guitarist Rubem Valentim (1922–1991), Brazilian artist
Given name Valentim Amões (1960–2008), Angolan politician Valentim Fernandes, Portuguese printer Valentim Loureiro (born 1938), Portuguese politician Valentim Magalhães (1859-1903), Brazilian journalist and novelist
See also Valentim Gentil, a municipality in São Paulo, Brazil São Valentim, a municipality in Rio Grande do Sul, Brazil Valentim de Carvalho, a Portuguese record label