Philippe Jaroussky (born 13 February 1978 in Maisons-Laffitte, France) is a French countertenor. He began his musical career with the violin, winning an award at the Versailles conservatory and then took up the piano before turning to singing. He is noted for a virtuosic coloratura technique and for compelling and enlivened interpretations of baroque cantatas and operas.

Jaroussky was inspired to sing by the Martinique-born countertenor Fabrice di Falco. He received his diploma from the Early Music Faculty of the Conservatoire de Paris. Since 1996, he has studied singing with Nicole Fallien. He has formed his own ensemble called Artaserse, and also often performs with the Ensemble Matheus under Jean-Christophe Spinosi and with L'Arpeggiata under Christina Pluhar.

According to La Terrasse, "this young singer with the tone of an angel and the virtuosity of the devil has come into the limelight in only a few years as the great new French vocal talent." He received the 2007 best French lyrical artist award. Jaroussky was awarded "The Best Singer of the Year" at the Echo Classic Awards, 2008. He also received an Echo Classic Award in 2012 for the Album Duetti, which he recorded together with Max Emanuel Cencic.