"Closer" is a song by American industrial rock band Nine Inch Nails, released as the second single on their second studio album, The Downward Spiral (1994). Released in May 1994, it is considered one of Nine Inch Nails' signature songs and remains their most popular song. Most versions of the single are titled "Closer to God", a rare example in music of a single's title differing from the title of its A-side. The single is the ninth official Nine Inch Nails release, making it "Halo 9" in the band's official Halo numbering system.

Nine Inch Nails, commonly abbreviated as NIN, stylized as NIN, is an American industrial rock band formed in Cleveland in 1988. Singer, songwriter, multi-instrumentalist, and producer Trent Reznor was the only permanent member of the band until his frequent collaborator, Atticus Ross, joined in 2016. The band's debut album, Pretty Hate Machine (1989), was released via TVT Records. After disagreeing with TVT about how to promote the album, the band signed with Interscope Records and released the EP Broken (1992). The following albums, The Downward Spiral (1994) and The Fragile (1999), were released to critical acclaim and commercial success.