"Bubbly" is the debut single of American singer Colbie Caillat from her first album, Coco (2007). Written by Caillat and Jason Reeves and produced by Mikal Blue, the song was released as the album's lead single on May 15, 2007. "Bubbly" is Caillat's highest-charting hit and is her only single to reach the top 10 of the US Billboard Hot 100. Internationally, "Bubbly" reached number one in Australia, Brazil, and the Czech Republic. It also became a top-10 hit in several European countries, including Belgium, Germany, and Norway.

The song's music video, directed by Liz Friedlander, aired on MTV, VH1 and CMT. A still from the music video was used as the cover for Caillat's debut album, Coco.