Stacy Barthe (born July 19, 1985) is a Haitian American songwriter and singer from Brooklyn, New york.

Barthe began her career as a pop and urban marketing intern for Geffen and Jive Records. Following her internships, she connected with producer Hit-Boy on Myspace and, in 2006, moved to Atlanta to work together. A year later, Barthe met Ethiopia Habtermariam who signed the young songstress to a publishing deal with Universal Music Publishing Group.

As a songwriter, Barthe has penned album tracks for artists including Beyonce, Kelly Rowland, Britnwy Spears, Katy Perry, Brandy, Miley Cyrus, Alicia Keys, Nipsey Hussle, Tiwa Savage, and Rihanna —the latter's "Cheers (Drink to That)", co-written by Barthe, hit number seven on Billboard's Hot 100. 

Barthe is also a GRAMMY-nominated songwriter for her contributions to Katy Perry's Teenage Dream, Rihanna's Loud, Miley Cyrus' Bangerz, Nipsey Hussle's Victory Lap, and Beyonce's The Lion King: The Gift