Ryoko Shiraishi is a Japanese voice actress and singer. She was a member of the now disbanded idol unit Drops.
- Known For: Acting
- Birthday: 1982-09-07
- Place of Birth: Kashiba, Nara Prefecture, Japan
- Also Known As: 白石 涼子, Ryōko Shiraishi, Ryôko Shiraishi, しらいし りょうこ, Ryouko Shiraishi, Drops, ドロップ, 白石凉子