Petit Best 12 (プッチベスト12) is the 12th volume of the Petit Best series by Hello! Project, which are annual compilations released at the end of the year that feature the best hits from the artists of Hello! Project during that year, with an occasional remix or new song included. It was released on December 7, 2011 on zetima label. This album sold a total of 2,037 copies. This album featured 2 tracks previously unreleased on a CD. Track 11 is the theme of the movie Sengoku Jiettai, and Track 17 was used on Oha Suta.