Yamauchi Yuna (山内祐奈) is a Japanese pop singer and idol managed by AKS. She is currently a member of HKT48 Team TII.
- Birth Name: Yamauchi Yuna (山内祐奈)
- Nickname: Yuuna (ゆうな)
- Date of Birth: July 6, 1999
- Place of Birth: Fukuoka, Japan
- Blood Type: A
- Height: 155cm
- Bands / Groups:
HKT48 Song Participation
- HKT48 Kenkyuusei "Nounai Paradise"
- HKT48 Himawari-gumi 1st Stage "Pajama Drive"
- HKT48 Himawari-gumi 2nd Stage "Tadaima Ren'aichuu"
- HKT48 Team KIV 2nd Stage "Saishuu Bell ga Naru"
- HKT48 Team H 4th Stage "Theater no Megami"
- HKT48 Team TII + Kenkyuusei "Te wo Tsunaginagara"
- Originally a third generation member of HKT48 Kenkyuusei, she was promoted to Team TII on March 30, 2016.
- Hobbies: Listening to music, singing
- Special Skill: Making people laugh, neat writing
- Charm Point: Eyelashes