Beata Mikołajczyk is a Polish canoe sprinter. She competed at the 2008, 2012 and 2016 Olympics, in two events for each games; she won one silver and two bronze medals and placed fourth two times.

Canoeing at the 2012 Summer Olympics in London were contested in two main disciplines: canoe slalom, from 29 July to 2 August, and canoe sprint, from 6 to 11 August. The slalom competition was held at the Lee Valley White Water Centre and the sprint events were staged at Eton College Rowing Centre, at Dorney Lake, known as Eton Dorney.