Aleksander Doba (9 September 1946 – 22 February 2021) was a Polish kayaker known primarily for his long voyages crossing oceans.

He went on to win the gold medal at the Open Academic Polish Championships in Whitewater Kayaking in 2003 at age 57 and defended the title the next year.

[10] After resting there, he initially planned to paddle another 6,000 kilometres (3,700 mi) north along the shorelines of the Americas to Washington, D.C.[12] However, he eventually decided to transport his transatlantic kayak to Peru instead and embarked on a journey down the Amazon River but after being attacked and robbed twice in Brazil he had to quit.

[13] On October 5, 2013, at age 67, he departed from Lisbon (Portugal) for a second transatlantic voyage, with the intention of paddling 8,690 kilometres (5,400 mi) across the Atlantic's widest point.

During the trip, he struggled against storms; his rudder was damaged and had to be repaired by sailors from a merchant vessel.

[4] He studied mechanical engineering at Poznan University of Technology and worked in a chemical factory most of his life.

According to eyewitness reports he felt well the entire journey but after reaching the top asked for a two-minute break before posing for a photo.