岩嶋雅奈未 (Iwashima Manami) is a former Japanese pop singer and idol, once managed by UP-FRONT KANSAI. She was part of the group HAPPY! STYLE and part of Hello Pro Kansai as a member of SI☆NA. She left the agency following the disbandment of SI☆NA on April 17, 2011. Afterwards, she released a solo single in 2012, but retired from the entertainment industry on February 26, 2013.
