Mongolia–South Korea relations (Mongolian: Монгол, Өмнөд Солонгосын харилцаа, Korean: 대한민국-몽골 관계) are foreign relations between South Korea and the Mongolia.

[5] Under a bilateral agreement signed in 2006, citizens of each country residing in the other are exempted from otherwise-mandatory contributions to the national pension plans of the country they reside in.

[7] In 2024, the two countries pledged to strengthen cooperation in climate action, cultural exchange for content creation, and urban development in Mongolia.

South Korean Prime Minister Han Duck-soo said:[8] "The similarities in the languages and cultures of [South Korea and Mongolia] have elevated the bilaterial relationship remarkably so far.

"Mongolian Prime Minister Luvsannamsrai Oyun-Erdene said:[8] "I expect [Mongolia and South Korea] to usher in a new era in terms of economy, trade and investment in the next 30 years,"