| Position: | Defence |
| Shoots: | Left |
| Height Ft: | 6 |
| Height In: | 1 |
| Weight Lb: | 207 |
| Ntl Team: | FIN |
| Birth Date: | 18 December 1947 |
| Birth Place: | Tampere, Finland |
| Death Place: | Tampere, Finland |
| Career Start: | 1964 |
| Career End: | 1984 |
Pekka Tapani Marjamäki (18 December 1947 – 10 May 2012) was a Finnish ice hockey player who played in the SM-liiga. He played for Tappara.
Marjamäki also played for HV 71 during the 1979–80 season.[1] He was inducted into the Finnish Hockey Hall of Fame in 1990, and into the IIHF Hall of Fame in 1998.[2]
Marjamäki had a heart attack when returning home from the supermarket on 7 May 2012. He was hospitalised and died in the intensive care unit of the hospital of Tampere during the early hours of 10 May.