- Birth Name: Hamamatsu Riona (濵松里緒菜)
- Nickname: Riona (りおな)
- Date of Birth: July 28, 1995
- Place of Birth: Tokushima, Japan
- Blood Type: O
- Height: 153cm
- 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|
|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|
- [2015–2017] AKB48 Team 8 no Hamamatsu Riona Yaken! (AKB48 Team 8の濵松里緒菜やけん！)
- Originally a member of AKB48 Team 8 as the first representative of Tokushima, she announced her graduation on June 12, 2017 and graduated on July 2, 2017. Her successor was Harumoto Yuki.
- The kanji for her surname "Hamamatsu" is written as 濵松, instead of the more common 浜. However, the latter kanji is used in places such as mobile websites where the proper kanji is not supported.
- Her special skill is conversing in English. She lived in Los Angeles, California until the age of 10.