"Champagne Supernova" is a song by English rock band Oasis, written by guitarist Noel Gallagher. The seven-minute anthem is the closing track on the record-breaking album (What's the Story) Morning Glory?. Though only released as a single in Australia, France and the United States, a music video directed by Nigel Dick was released to music channels and, as a result, the song received much television and radio airplay. The song achieved U.S. success, becoming the band's second #1 single on the Modern Rock Tracks chart. It also peaked at #20 on the Billboard Hot 100, becoming the band's second top 40 single.

An official remix of the song was produced by Brendan Lynch, and was issued on the b-side on a promo-only 12" of Oasis's cover of "Cum On Feel the Noize". Known as the "Lynchmob Beats Mix", this track has been reissued on promotional material for Oasis's "best of" album Stop the Clocks.