Ippei Watanabe (swimmer)

Ippei Watanabe (渡辺 一平) is a Japanese swimmer and former world record holder in the 200 metre breaststroke.

Career
He competed in the men's 100 metre breaststroke event at the 2016 Summer Olympics. On 9 August 2016, Watanabe broke the Olympic record for the men's 200 metre breaststroke event at the 2016 Summer Olympics during the semi-final. In the final, he finished 6th.

At the Kosuke Kitajima Cup in Tokyo he broke the long course 200 metre breaststroke world record in a time of 2:06.67. He is also the first swimmer ever to go under 2:07.