"From This Moment On" is a song by Canadian singer Shania Twain. It was released as the fourth single from her third studio album, Come On Over (1997). The song was written by Twain, with additional production and songwriting by Robert John "Mutt" Lange. Twain has performed "From This Moment On" on every one of her tours. Both a duet with Bryan White, as well as a solo version were released.

"From This Moment On" is a country pop track that received generally favourable reviews from music critics, who deemed the song as one of the highlights on the album. The song achieved commercial success, reaching number two in Australia, number seven in New Zealand, number four in Canada and the United States, and number nine in the United Kingdom. The song also charted in France, Netherlands, and Sweden, as well on several US Billboard charts.

An accompanying music video, directed by Paul Boyd, depicts Twain walking down a hallway alone in a dress, and then toward the end of the video, she appears with a symphony orchestra to perform the remainder of the song. 

"From This Moment On" was written during a soccer game in Italy. Twain once explained, "We were in Italy at a soccer game. My husband loves sports. I don't know the game that well, so my mind drifted and I started writing." Initially, Twain thought that "From This Moment On" would be perfect for singer Celine Dion; however, as Twain and Lange developed the song, they concluded that it would work best as a duet. While their first choice for the duet was Elton John, they chose country singer Bryan White.[3] Twain later described White as "the best male voice in country music. Beyond country music! He's an excellent singer. So he needed to be on this record, because the song soars. It demands that. It demands dynamics."[2] White explained that, by the time he went to the recording, the song was mostly finalized, and described it as 'extremely challenging' vocally.[2] Twain also considered giving the song to fellow Canadian singer, Celine Dion, but her husband at the time and co-writer/producer of the song, Mutt Lange, convinced her to keep it for herself.

Initial first-run pressings of the international version of the Come On Over album during March 1998 featured White on the song, while subsequent pressings began featuring the song as a solo recording. In early 1998, Mercury executives were informed that White would be unable to promote the song alongside Twain; therefore, Twain had to return to the studio to re-record White's parts on her own. According to White's spokesman at Asylum Records, "We've certainly heard knocking on our door about "From This Moment On" being too contemporary for Bryan's sake; therefore, it is fine if they want to go to the Top 40 without him." White later claimed that he had no hard feelings towards Twain for him being excluded from the international version of the song, stating, "They're releasing this song as a pop record, and I'm not a pop artist, so my feelings aren't hurt."[4]

"From This Moment On" was released as the fourth single from Come On Over on May 4, 1998, in the United States while being released in Australia on August 10, 1998, and in the United Kingdom on November 16, 1998.[1][5][6][7] Musically, "From This Moment On" is a country pop ballad and is set in common time with a slow tempo of 68 beats per minute.[8][9] The song is written in the key of G major with Twain's vocal range spanning from the low note of D3 to the high note of C5.[9] Nick Reynolds of BBC Music described the song as a power new country ballad with "a beautiful melody".