Wilma Cosmé (born 16 January 1966, in San Juan, Puerto Rico), better known by her stage name Sa-Fire, is a Puerto Rican singer. She is one of the few Latin freestyle artists to have achieved major pop chart success and is considered to be one of the most prominent representatives of the genre. Relatively well-known to the mainstream media, Sa-Fire continues to perform all over the world and at many venues.

Sa-Fire has been featured in various magazines, such as Us Magazine, Billboard, Vogue, Elle, and most recently in the December 2011 issue of Signature Hits Magazine. She was the first Latina to grace the cover of Spin Magazine. Sa-Fire has also appeared on television programs such as American Bandstand, Pat Sajak Show, Joan Rivers Show, Latin Connection, MTV International, Party Machine, PM Magazine, and Entertainment Tonight. Sa-Fire has performed throughout the United States, Japan, Europe, the Caribbean, and South America. She has won numerous awards for her work, including six New York Music Awards, three Desi Awards, and an ASCAP award for writing "Thinking of You."