Janghyun (장현) is a Korean singer. He is the leader, producer and a vocalist for the Korean pop group Sunny Hill and one of its three original members. On January 31st, 2012, Janghyun enlisted for his 2 years mandatory military service.
- Stage Name: Janghyun (장현)
- Real Name: Kim Jang Hyun (김장현)
- Birthdate: July 16, 1985
- Height: 175cm
- Weight: 64kg
- Education: Anyang University, Department of Education Information and Communication
- Was a finalist in Battle Shinhwa, but left to focus on his studies.
- Special skills include magic tricks and MIDI.