Tatyana Romanovna Lebedeva is a Russian track and field athlete who competes in both the long jump and triple jump events. She is one of the most successful athletes in the disciplines, having won gold medals at Olympic, world and European levels. She has a long jump best of 7.33 m and held the then indoor world record mark of 15.36 m in the triple jump. In 2017 she was banned for doping.

The long jump is a track and field event in which athletes combine speed, strength and agility in an attempt to leap as far as possible from a takeoff point. Along with the triple jump, the two events that measure jumping for distance as a group are referred to as the "horizontal jumps". This event has a history in the ancient Olympic Games and has been a modern Olympic event for men since the first Olympics in 1896 and for women since 1948.