Koharu Shiina (椎名 心春, Shiina Koharu, born April 21, 2002) is a Japanese AV actress from Sapporo, Hokkaido. She belongs to LiStarPro. Her body measurements are 84-59-88 cm (E cup) and her height is 1.64 m. Her hobbies and special skills are musicals, listening to music, and reading. She made her debut on March 20, 2024. Before becoming an AV actress, she worked as a hotelier.