유지인(兪知仁, 본명:이윤희, 1956년 1월 27일 ~ )은 대한민국의 배우이다.

대학교 : 중앙대학교 연극영화과

대학원 : 중앙대학교 대학원 연극영화과 석사

2013년 인제 5대명품과 함께하는 용대황태축제 홍보대사
2013년 사랑정원 홍보대사
2013년 KAC한국예술원 방송연예예술학부 교수
2012년 영화진흥위원회 위원

1979년 한국연극영화대상 연기상
1979년 대종상 영화제 여우주연상

Yu Ji-in (born January 27, 1956) is a South Korean actress active since 1974. She was born Lee Yun-hui in Seoul, South Korea in 1956 and received a bachelor and master degree in Theater and Film from Chung-Ang University. When she was a freshman at the school in 1974, she started her acting career after getting elected in a joint recruit held by the Yeonbang Film, and Weekly Hankook. From onwards to 1977, she appeared in one to three films per year and at the same time, she also acted as a TV actress affiliated to TBC TV. Yu was commonly referred to as "New Troika" or "Second Troika" along with her rival actresses, Jeong Yun-hui and Chang Mi-hee of the 1970s and 1980s after the "First Troika", Moon Hee, Nam Jeong-im, and Yun Jeong-hui of the 1960s.

俞知仁（朝鲜语：유지인，1956年1月27日－），韩国女演员。