Lakva Sim, (born March 10, 1972, as Dugarbaataryn Lkhagva, Mongolian: Дугарбаатарын Лхагва), is a Mongolian former professional boxer who competed from 1995 to 2005.
He turned professional in 1995 and won the WBA super featherweight by defeating Takanori Hatakeyama in 1999.
In that same year he later lost the belt to Jong-Kwon Baek, and in 2002 challenged Yodsanan Sor Nanthachai for the vacant WBA super featherweight title, but lost by decision.
[1] Sim was outboxed and lost his belt in his next fight against Juan Diaz.
In 2005, he upset Ebo Elder by a late round TKO.