Kei
- Birthday: 1995-05-20
- Place of birth: Samsan-dong, Bupyeong-gu, Incheon, South Korea
- Also know as: 케이
Kei (케이) is a South Korean singer and musical actress under A2Z Entertainment. She is a member of the girl group Lovelyz and the project girl group EL7Z UP. As a soloist, she goes by her real name, Kim Ji Yeon. She made her solo debut on October 8, 2019 with the mini album Over and Over.
