Isabel Vargas Lizano (born 17 April 1919, died August 5, 2012) was a Costa Rican-born Mexican singer. She is especially known for her rendition of Mexican rancheras genre - a folkloric musical genre widely popular in Mexico - but she is also recognized for her contribution to other popular Latin American song genres. She has been an influential interpreter in the Americas and Europe, muse to figures such as Pedro Almodóvar, hailed for her haunting performances, and called "la voz áspera de la ternura", the rough voice of tenderness.