Park Jun-yong (born 27 February 1991) is a South Korean mixed martial artist who competes in the Middleweight division of the Ultimate Fighting Championship.

Ultimate Fighting Championship

Park made his UFC debut during UFC Fight Night: Andrade vs. Zhang, against Anthony Hernandez. He lost this fight by anaconda choke.

Park next faced Marc-André Barriault on December 21, 2019 at UFC Fight Night 165. He won the fight via unanimous decision.

Park was expected to face Trevin Giles on August 1, 2020 at UFC Fight Night 173. However, Park was removed from the bout on July 23 due to alleged travel restrictions related to the COVID-19 pandemic.

Park faced John Phillips on October 17, 2020 at UFC Fight Night: Ortega vs. The Korean Zombie. He won the fight via unanimous decision. Park landed 258 ground strikes during the fight, breaking the previous record of 251 ground strikes landed in a three-round fight set by Matt Riddle 11 years prior.

Park faced Tafon Nchukwi on May 8, 2021 at UFC on ESPN 24. He won the fight via majority decision.

Park faced Gregory Rodrigues on October 23, 2021 at UFC Fight Night: Costa vs. Vettori. He lost the fight via knockout in round two. This fight earned him Fight of the Night award.

Park faced Eryk Anders on May 21, 2022 at UFC Fight Night 206. He won the bout via split decision.

Park faced Joseph Holmes on October 29, 2022 at UFC Fight Night 213. He won the fight via rear-naked choke in round two.

Park faced Denis Tiuliulin on February 4, 2023 at UFC Fight Night 218. He won the fight via rear-naked choke in round one.

Park next faced Albert Duraev at UFC Fight Night: Holm vs. Bueno Silva on July 15, 2023, winning the fight via a rear-naked choke submission in the second round.

Park faced André Muniz on December 9, 2023, at UFC Fight Night 233. He lost the fight via split decision.

Park is scheduled to face Abusupiyan Magomedov on May 18, 2024, at UFC Fight Night 242.