- Name: Hama Sayuna (濵咲友菜)
- Nickname: Saachan (さーちゃん), Sayu (さゆ), Hamachan (はまちゃん)
- Birthdate: August 20, 2001
- Birthplace: Shiga, Japan
- Blood Type: A
- Height: 145.6cm
- Bands / Groups:
AKB48 Song Participation
|Kokoro no Placard||47 no Suteki na Machi e||Team 8|
|Kibouteki Refrain||Seifuku no Hane||Team 8|
|Green Flash||Aisatsu Kara Hajimeyou||Team 8|
|Kuchibiru ni Be My Baby||Amanojaku Batta||Team 8|
|Tsubasa wa Iranai||Yume e no Route||Team 8|
|High Tension||Shishunki no Adrenaline||Team 8 WEST|
|Teacher Teacher||Neko Allergy||Team 4|
|Hachinosu Dance||Team 8|
|Nemohamo Rumor||Seikou Toutei||Team 8|
|Motokare Desu||Loss of time||Team K|
|Hisashiburi no Lip Gloss||Majika||2nd Generation|
|Koko ga Rhodes da, Koko de Tobe!||Henachoko Support||Team 8|
|0 to 1 no Aida||Isshou no Aida ni Nannin to Deaeru no Darou||Team 8|
- Currently a member of AKB48 Team 8 as the representative of Shiga. She was announced for a concurrent position with Team 4 during the AKB48 team shuffle in 2017. She was transferred to Team K on April 19, 2022 during the AKB48 16th anniversary team shuffle. She announced her graduation on February 4, 2023. She will graduate following the Team 8 9th anniversary and farewell concert on April 30, 2023.
- Her favorite 48 Group song is "Eien Pressure".
- The senior members she admires are Matsui Jurina and Sashihara Rino.