| Age | 43 |
| Birthday | 15 October, 1981 |
| Zodiac Sign | Libra |
| Nationality | Finnish |
| Occupation | Snowboarding |
Markku Koski (born 15 October 1981) is a professional snowboarder from Sievi, Finland. He is well known within the snowboarding community for his consistent showing in half-pipe competitions and for his video parts with Standard Films. Koski won the bronze medal at 2006 Winter Olympics in the Halfpipe competition, and he won a gold medal in the Big Air competition at the 2009 Snowboard World Championships.
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