"My Heart Will Go On" is a 1997 song recorded by the Canadian singer Celine Dion as the theme for the film Titanic. It was composed by James Horner, with lyrics by Will Jennings. It was produced by Horner, Walter Afanasieff and Simon Franglen. "My Heart Will Go On" was released as a single internationally on November 24, 1997, and was included on Dion's album Let's Talk About Love and the Titanic soundtrack.

Horner composed the basis of "My Heart Will Go On" as a motif used in the film soundtrack, and suggested developing it into a song. The Titanic director, James Cameron, resisted, as he felt a pop song would be inappropriate for the film, but agreed to use it after hearing the demo. The final version was arranged by Afanasieff.

"My Heart Will Go On" is considered Dion's signature song. It topped the charts in more than twenty-five countries. With worldwide sales estimated at over 18 million copies, it is the second-best-selling physical single by a woman in music history, and one of the best-selling physical singles of all time. It was also the world's best-selling single of 1998. It was included in the list of Songs of the Century by the Recording Industry Association of America and the National Endowment for the Arts. The music video was directed by Bille Woodruff and released at the end of 1997. Dion performed the song to honour the 20th anniversary of the film at the 2017 Billboard Music Awards on May 21, 2017.