| Valdoir | |
| Fullname: | Valdoir Marques de Souza |
| Birth Date: | 3 June 1958 |
| Birth Place: | Pelotas, Brazil |
| Death Place: | Santana do Livramento, Brazil |
| Position: | Defender |
| Youthyears1: | 1974–1976 |
| Youthclubs1: | Grêmio Santanense |
| Youthyears2: | 1976–1978 |
| Youthclubs2: | Grêmio |
| Years1: | 1978 |
| Caps1: | 13 |
| Goals1: | 0 |
| Years2: | 1979–1980 |
| Years3: | 1980–1981 |
| Years4: | 1981–1982 |
| Years5: | 1983 |
| Years6: | 1984 |
| Years7: | 1984–1985 |
| Years8: | 1986 |
| Nationalyears1: | 1979–1980 |
| Nationalcaps1: | 14 |
| Nationalgoals1: | 0 |
| Medaltemplates-Expand: | yes |
| Pcupdate: | 24 November 2023 |
Valdoir Marques de Souza (3 June 1958 – 30 July 2016), simply known as Valdoir, was a Brazilian professional footballer who played as a defender.
Valdoir played for several clubs in Brazil, especially Bahia and teams from the southern region. Versatile, Valdoir played in any position in the defensive system.[1]
Valdoir was part of the Olympic team of Brazil in 1979, being champion of the San Juan Pan American Games, and of the 1980 CONMEBOL Pre-Olympic Tournament this time without repeating the success and not qualifying for Moscow.[2]
1979