Graciella Ruth Wiranto
- Name: Graciella Ruth Wiranto
- Nickname: Ciel
- Birthdate: March 5, 2004
- Birthplace: Bogor, West Java, Indonesia
- Height: 157cm
- Hobbies: Playing violin, reading novels
- Bands / Groups:
JKT48 Song Participation
- 7ji 12fun no Hatsukoi (Under)
- She joined JKT48 as a 6th generation member on April 8, 2018, and was placed into Academy Class B on April 15th.
- She was promoted to Academy Class A on June 10, 2018.