迪蜜翠雅·迪芳·"黛咪"·洛瓦托（英语：Demetria Devonne "Demi" Lovato，1992年8月20日－），是美国女歌手、作曲人、作词人及演员。她因主演迪士尼频道作品《摇滚夏令营》、《公主保卫战》及《加油！桑妮》而为人们所熟悉，有“摇滚公主”的称号。她已发售4张专辑，其中歌曲《摩天楼》("Skyscraper")最受欢迎。她担任过第2季和第3季《美版X音素》的评委，并演唱过电影《冰雪奇缘》片尾曲《放开手》("Let It Go")。

2015年10月16日，洛瓦托发售第5张个人专辑《玩美自信》(Confident)，并开始走性感路线。

Demetria Devonne "Demi" Lovato (/ˈdɛmi loʊˈvɑːtoʊ/ DEM-ee loh-VAH-toh or lə-VAH-toh) (born August 20, 1992) is an American singer, songwriter, actress and model who made her debut as a child actress in Barney & Friends. In 2008, Lovato rose to prominence in the Disney Channel television film Camp Rock and signed a recording contract with Hollywood Records. Musically, Lovato is considered a pop, pop rock and R&B artist. She released her debut album, Don't Forget, in September of 2008; it debuted at No. 2 on the U.S. Billboard 200 and has been certified gold by the Recording Industry Association of America (RIAA) for sales of over 530,000 copies. In 2009, Lovato received her own television series, Sonny with a Chance. Her second album, Here We Go Again, was released that July and debuted at number one on the U.S. Billboard 200, and it has been certified gold by the Recording Industry Association of America (RIAA) for sales of over 650,000 copies. Its title track became her first single to break the top 20 of the Billboard Hot 100, reaching number 15, and was certified platinum.