Narumi Natsuaki (夏秋 成美, Natsuaki Narumi, August 16, 1975) is a Japanese actress. Her former stage name is Kayoko Natsuaki (夏秋 佳代子, Natsuaki Kayoko). Her blood type is A.

She was born in Kubota, Saga Disctrict (now Saga City). She graduated from Kubota Municipal Shisai Junior High School and Saga Prefectural Saga Kita High School. After being enrolled in Bungakuza Training School for 3 years, she later was affiliated with By The Way and Tender Pro, and is currently a freelancer. She also teaches dialects in movies and dramas.