"Latch" is a song by English garage-house duo Disclosure. It features the vocals from English singer Sam Smith. It was released as a digital download on 8 October 2012, by PMR Records. The lead single from their debut studio album, Settle (2013), the song debuted on the UK Singles Chart at number 26 and has peaked at number 11. In the United States, "Latch" was a sleeper hit, peaking at number seven on the Billboard Hot 100 chart in 2014. The remix of the single features American rapper Schoolboy Q.

Originally, Disclosure thought that "Latch" was "too weird for the radio and not clubby enough for the clubs" because of its time signature. "It’s in 6/8 time — not even 4/4, the more commonly used time signature for house music." When first hearing Sam Smith's voice, Guy and Howard thought he was a woman and later were "amazed" that he was not.

Howard has stated that Disclosure is "trying to bring some soul into the songwriting... using jazz chords and interesting melodies instead of boring, stabby EDM triads." According to the sheet music published at MusicNotes.com, "Latch" is composed in the key of F minor with a tempo of 122 beats per minute.

Michael Cragg of The Guardian wrote of the song: "it's a slowly unravelling ode to the thrill of wanting to figuratively (and possibly literally) latch on to someone else." Jon Caramanica of The New York Times viewed the track as one of the duo's "least characteristic" songs, describing it as "less relaxed, more ambitious, more blatantly pop-oriented, with full-bodied vocals". Jamieson Cox lauded the song in The Verge: "Latch" is a "song that remains this decade’s prototypical piece of dance-pop. There’s no such thing as a perfect song, but 'Latch' comes close: it’s economic, beguiling, and precise."

A music video to accompany the release of "Latch" was first released onto YouTube on 9 October 2012, with a run time of 04:17. The video short was directed by Ross McDowell and Ben Murray of London's Bullion Collective, and features scenes of several couples flirting and embracing. One of the couples is home inside an apartment, another meet in a crowded elevator and begin to kiss once the others on the elevator have left and the third couple is two young women who meet in a bar. Sam Smith does not appear in the video.

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