| Marja Pärssinen | |
| Fullname: | Marja Kristiina Päivinen-Pärssinen |
| Nicknames: | "Marde' |
| Strokes: | Freestyle and Butterfly |
| Club: | Simmis |
| Birth Date: | 13 March 1971 |
| Birth Place: | Jyväskylä, Finland |
| Weight: | 64kg (141lb) |
Marja Pärssinen (born 13 March 1971 in Jyväskylä, Finland) is a retired female butterfly and freestyle swimmer from Finland. Nicknamed Marde Pärssinen competed for her native country at three consecutive Summer Olympics, starting in 1992 in Barcelona, Spain. Her best result was a 14th place with the women's 4×100 m medley relay team at the 1996 Summer Olympics, alongside Mia Hagman, Minna Salmela, and Anu Koivisto.