The Korean Zombie

Jung Chan-sung
Jung in July 2013
BornJung Chan-sung
(1987-03-17) March 17, 1987
Pohang, South Korea
Native name정찬성
Other namesThe Korean Zombie
Height5 ft 9 in (1.75 m)
Weight145 lb (66 kg)
DivisionFeatherweight (2008–2023)
Lightweight (2007)
Reach72 in (183 cm)
Fighting out ofSeoul, South Korea
TeamKorean Zombie MMA
Fight Ready (2019–2023)
Rank3rd dan black belt in Hapkido
2nd dan black belt in Taekwondo
Black belt in Judo
Black belt in Brazilian Jiu-Jitsu under Santino Defranco
Years active2007–2023
Kickboxing record
Total21
Wins15
By knockout11
Losses6
Mixed martial arts record
Total25
Wins17
By knockout6
By submission8
By decision3
Losses8
By knockout5
By decision3
Other information
Mixed martial arts record from Sherdog
Korean name
Hangul
정찬성
Hanja
鄭讚成
RRJeong Chanseong
MRChŏng Ch'ansŏng

Jung Chan-sung (Korean: 정찬성; born March 17, 1987), anglicized as Chan Sung Jung and better known by his ring name The Korean Zombie, is a South Korean former professional mixed martial artist.

He competed in the Featherweight division of the Ultimate Fighting Championship (UFC). A professional competitor since 2007, Jung formerly fought for the WEC, Pancrase, World Victory Road, and DEEP. His nickname, The Korean Zombie, comes from his perceived zombie-like ability to continue to move forward and fight aggressively, even after taking heavy blows.