| Rainer Packalén | |
| Nationality: | Finnish |
| Sport: | Sailing |
| Birth Date: | 21 February 1917 |
| Birth Place: | Helsinki, Finland |
| Death Place: | Espoo, Finland |
Rainer Packalén (21 February 1917 - 8 September 2008) was a Finnish sailor. He competed in the Dragon event at the 1948 Summer Olympics.[1]