白石 涼子 · Ryōko Shiraishi · Ryôko Shiraishi · しらいし りょうこ · Ryouko Shiraishi · Drops · ドロップ
Ryoko Shiraishi (白石 涼子, Shiraishi Ryouko) is a Japanese voice actress and singer. She was a member of the now disbanded idol unit Drops.