| Rainer Troppa | |
| Birth Date: | 2 August 1958 |
| Birth Place: | Kolkwitz, East Germany |
| Position: | Defender |
| Years1: | 1975–1976 |
| Clubs1: | BSG Energie Cottbus |
| Caps1: | 7 |
| Goals1: | 0 |
| Years2: | 1976–1989 |
| Clubs2: | BFC Dynamo |
| Caps2: | 172 |
| Goals2: | 37 |
| Nationalyears1: | 1981–1984 |
| Nationalteam1: | East Germany |
| Nationalcaps1: | 17 |
| Nationalgoals1: | 0 |
Rainer Troppa (2 August 1958 – 9 September 2023) was a German professional footballer who played as a defender. Troppa began his professional career with BSG Energie Cottbus. He was transferred to BFC Dynamo when BSG Energie Cottbus was relegated to second tier DDR-Liga after the 1975–76 DDR-Oberliga season.[1] He played for the East Germany national team, featuring in the unsuccessful qualifying campaigns for the 1982 and 1986 World Cups and the 1984 European Championship.[2] Troppa died in September 2023, at the age of 65.[3]