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]