斉藤瞳 (Saito Hitomi) is a Japanese radio personality and former singer, once under Hello! Project as the leader of Melon Kinenbi until its disbandment in 2010. She is also a former member of Gatas Brilhantes H.P., Hello! Project's futsal club. After Melon Kinenbi's disbandment, Saito retired from the music industry, but has since participated in brief reunions of the group for events.