'''Go Youn-jung''' ([[Korean language|Korean]]: 고윤정; {{lahirmati||22|4|1996}}) adalah [[aktris]] dan model asal [[Korea Selatan]].<ref>{{cite web|url=https://tenasia.hankyung.com/drama/article/2020122253654|title='스위트홈' 이진욱 "고윤정과 러브라인? 멜로 아닌 치유"|publisher=Ten Asia|date=December 1, 2020}}</ref> dia merupakan kekasih dari Angga Adulkittiporn. Ia paling dikenal untuk perannya dalam dalam drama ''[[He Is Psychometric]]'', ''[[The School Nurse Files]]'' dan ''[[Sweet Home]]''.<ref>{{cite web|url=http://www.sportsseoul.com/news/read/996454?ref=naver|title=송강만? 이도현·고민시·박규영·고윤정, '스위트홈' 빛낸 젊은 감초들|publisher=Sports Seoul|date=December 2, 2020}}</ref><ref>{{cite web|url=http://www.stardailynews.co.kr/news/articleView.html?idxno=288576|title=고윤정, 신비로운 매력+대담한 포즈... 시선 강탈|publisher=Star Daily News|date=December 3, 2020}}</ref><ref>{{cite web|url=https://star.mt.co.kr/stview.php?no=2020120410205804146|title='스위트홈' 고윤정, 이미지 180도 변신..활약 기대|publisher=StarNews|date=December 4, 2020}}</ref><ref>{{cite web|url=http://osen.mt.co.kr/article/G1111492470|title='스위트홈' 이시영x고민시x박규영x고윤정, 독보적 女캐릭터 전형성 깼다|publisher=Osen|date=December 5, 2020}}</ref><ref>{{cite web|url=https://star.mt.co.kr/stview.php?no=2020123007504091050|title='스위트홈' 고민시X박규영X고윤정, 틀을 깬 강인함..女캐릭터 맛집|publisher=StarNews|date=December 14, 2020}}</ref>