Bayar Yesui (Mongolian: Баярын Есүй; born 21 July 2000) is a Mongolian swimmer.
She competed in the women's 50 metre freestyle at the 2016 Summer Olympics and finished 60th with a time of 28.40 seconds out of 91 contestants.
She did not advance to the semifinals, which required a top 16 finish in the heats.
Bayar Yesui is the youngest Olympian from Mongolia.
[2] This biographical article related to a Mongolian swimmer is a stub.