| Marcin Dzieński | |
| Nickname: | Rambo[1] |
| Fullname: | Marcin Jan Dzieński |
| Nationality: | Polish |
| Birth Date: | 22 January 1993 |
| Birth Place: | Tarnów |
| Country: | Poland |
| Sport: | Competition speed climbing |
| Club: | AZS PWSZ Tarnów |
| Coach: | Tomasz Mazur |
Marcin Dzieński (born 22 January 1993) is a Polish competition climber who specializes in competition speed climbing from Tarnów.[1] He is multiple World and European Championships medalist and 2016 World Champion,[2] the first Polish climber to achieve that title.
He debuted in Speed Climbing World Championships in 2011. Since 2018, he's also competing in Bouldering World Championships and Worldcup.[2]