Marina (満里奈; born August 12, 2005, in Tokyo, Japan) is a Japanese actress and model. She began her career under the name Marina Ishikawa (石川 満里奈, Ishikawa Marina) and gained national recognition after winning both the Miss Japan Grand Prix 2025 and Miss Kimono 2025 titles. Represented by Oscar Promotion, she adopted the stage name Marina in 2026. Her acting credits include the film Kashi 709 (2024) and the streaming dramas Ninjatachi no Hangeki (2024) and Reijō Kessen! Watashi Koso ga Gakuen no Queen (2025).