"Mon mec à moi" (English: "That guy of mine") is a French pop song with lyrics by Didier Barbelivien and music by François Bernheim. Patricia Kaas recorded it in 1988 and released it in November of that year as the third single from her debut studio album, "Mademoiselle chante..." (1988), where it is the opening track. It was her fourth single overall. Bernard Estardy produced the recording at CBE in Paris. The B-sides are "Chanson d'amour pas finie" and "Un dernier blues".
The single debuted at number 28 in France on 3 December 1988 and climbed to number 5, her highest French position and her first top-five hit in France. It spent four weeks in the top ten and was certified silver by SNEP. It reached number 26 on the Eurochart Hot 100 and number 5 in Quebec. Kaas performed the song on her 1991, 1994 and 1998 tours, and live versions appear on "Carnets de scène", "Tour de charme" and "Rendez-vous". It has also been covered in several languages, including Czech ("Můj chlap") and Finnish ("Pikku lurjus").