| idol_id | 216 |
| Selca owner | akb48_rio |
| Pop type | J-Pop |
| Stage name (romanized) | Rio |
| Stage name (original) | りお |
| Real name (romanized) | Okawa Rio |
| Real name (original) | 大川莉央 |
| Birth date | 2001-03-01 (age 23) ▲ ▼ |
| Chinese zodiac sign | 🐍 Snake |
| Western zodiac sign | ♓ Pisces |
| Hometown | Tokyo |
| Height | 156.0cm (5'1") ▲ ▼ |
| Weight | |
| Blood type | A |
| Debut date | 2013-10 ▲ ▼ |
| Country of origin | 
Japan |
| Name | Company | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|
|
AKS | 2005-12-08 | No |