Bayartsogtyn Mönkhzayaa (Mongolian: Баярцогтын Мөнхзаяа; born 10 October 1993) is a Mongolian long-distance runner.

[3] She competed in the marathon event at the 2015 World Championships in Athletics in Beijing, China.

[4] In 2019, she competed in the women's marathon at the 2019 World Athletics Championships held in Doha, Qatar.

[5] At the 2020 Summer Olympics in Tokyo, Mönkhzayaa ran a season's best 2:37:08 in the women's marathon, finishing in 45th place.

This biographical article relating to Mongolian athletics is a stub.