Jung Yun-ho
- Birthday: 2/6/1986
- Place of birth: Gwangju, South Korea
- Fame for: Acting
- Also known as: 유노윤호, Yunho Jung, Yunho, U-Know, 정윤호, Jung Yun-ho, 윤호, TVXQ, 동방신기, 郑允浩
- Social networks: Instagram
Biography
U-Know Yunho, born Jung Yunho (정윤호), is a South Korean singer and actor, best known as a member of boyband TVXQ.