Roi

Roi or ROI may refer to:

Music

 * "Roi" (song), by Bilal Hassani, 2019
 * "Roi", a song by The Breeders from the 1993 album Last Splash

People

 * Alice Roi (born 1975 or 1976), American fashion designer
 * Qin Fen (born 1991), also known as Roi, Chinese singer
 * Roi (given name), including a list of people with the name

Places

 * Ro'i, an Israeli settlement in the West Bank
 * Roi, Lhünzê County, a village in Tibet
 * Roi-Namur, previously two islands Roi and Namur, in the Marshall Islands
 * Republic of Ireland

Other uses

 * USS Roi, a US World War II aircraft carrier
 * Roi, the Hawaiian name for Cephalopholis argus, the blue-spotted grouper
 * Roi, the French word for "king"
 * List of French monarchs
 * Region of interest, a sample within a data set for a particular purpose
 * Release of information department, in hospitals
 * Return on investment, an accounting measure
 * Royal Institute of Oil Painters, an association of painters in London, England