Hama Sayuna (濵咲友菜)
- Birth Name: Hama Sayuna (濵咲友菜)
- Nickname: Saachan (さーちゃん)/Sayu (さゆ)
- Position: Vocalist
- Birthday: August 20, 2001
- Blood Type: A
- Height: ?
- Weight: ?
- Team: 4, 8
- Zodiac Sign: Leo
- Generation: 1st Generation Team 8
- Twitter: @hamachan_0820
- Instagram: @sayuna_hamachan