Ryunosuke Kamiki (神木 隆之介, Kamiki Ryūnosuke, born May 19, 1993) is a Japanese actor. Regarded as a child prodigy across 25 years in the industry, he has garnered many awards for his performances.

Personal life
After he was born, he was in the intensive care unit for four months and remained in critical condition for two months. As an infant, he lost weight rapidly due to a gastrointestinal disease of unknown cause, and it was dangerous enough that the doctor said the survival rate was 1%. According to the doctor, even if he survived, he would still be disabled. He was finally discharged from the hospital when he was seven months old. His mother came up with the idea of making him a child actor to leave concrete proof of his existence. His family consists of his grandparents, father, mother, a sister who is 11 years older than him and two nieces. His grandmother died in 2020.