Butterfly is the twelfth album by the Japanese rock band L'Arc-en-Ciel. It was released on February 8, 2012, in two versions: regular and deluxe edition, with the latter including the tracks of the first album by their alter ego band P'unk-en-Ciel, titled P'unk Is Not Dead, and a DVD. The album was released in several European countries, starting on March 5, 2012, with the United Kingdom and finishing on March 17 with Spain and Poland.
The band's first studio album in four years, it includes all six singles (including one double A-side single) released between "Drink It Down" in 2008 and "Chase" in 2011. Butterfly debuted at number one on the Oricon chart, selling over 170,000 copies in its first week. It also debuted at number eight on Gaon Music Chart.