| Haroldo | |
| Full Name: | Haroldo Rodrigues Magalhães Castro |
| Birth Date: | 20 December 1931 |
| Birth Place: | Rio de Janeiro, Brazil |
| Death Place: | Rio de Janeiro, Brazil |
| Position: | Centre-back |
| Years1: | 1950–1952 |
| Clubs1: | Botafogo |
| Years2: | 1952–1954 |
| Clubs2: | Vasco da Gama |
| Years3: | 1954–1955 |
| Clubs3: | Palmeiras |
| Years4: | 1955–1957 |
| Clubs4: | Vasco da Gama |
| Nationalyears1: | 1953 |
| Nationalteam1: | Brazil |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 0 |
Haroldo Rodrigues Magalhães Castro (20 December 1931 – 16 July 2010), known as Haroldo, was a Brazilian footballer who played as a centre-back.[1] He made two matches for the Brazil national team in 1953.[1] He was also part of Brazil's squad for the 1953 South American Championship.[2] Haroldo died in Rio de Janeiro on 16 July 2010, at the age of 78.[3]