Science Fiction is the fifth and final studio album by American rock band Brand New, released on August 17, 2017 through Procrastinate! Music Traitors, the band's own label. It was the band's first album in eight years, following Daisy in 2009.

A fifth Brand New album was originally scheduled for release in 2016 before the band announced in September that it was not ready to be finalized. During the recording process for Science Fiction, the band also repeatedly communicated an imminent disbanding in 2018. The album was surprise-released on August 17, 2017, with its title and track listing previously unknown, after 500 untitled CDs were sent to fans who had pre-ordered the fifth album on vinyl.

It was both a critical and commercial success. Science Fiction received universal acclaim from music publications for befittingly concluding Brand New's influential career. It also debuted at number one on the United States Billboard 200 albums chart, the band's first to top the ledger.