"Black Coffee" is a song by English-Canadian girl group All Saints from their second studio album, Saints & Sinners (2000). It was released on 2 October 2000 by London Records as the album's second single. The track was produced by William Orbit, and written by Tom Nichols, Alexander von Soos and Kirsty Elizabeth, initially intended as a single for Elizabeth under the title "I Wouldn't Wanna Be". It is a mellow electropop song, unique for its production-laden sound featuring breathy keyboards, glitching electronics and elements of acid techno, ambient and R&B music. A sad love song, its lyrics stem from Elizabeth's relationship with Swiss entrepreneur Ernesto Bertarelli, detailing feelings of love at first sight and content.

The track was met with general acclaim from music critics who likened it to the group's previous single "Pure Shores" for their wistful chorus delivery and Orbit's obscure production. Its unconventional structure was also cited as influential for the sound of later girl groups such as the Sugababes and Girls Aloud. A commercial success, "Black Coffee" marked All Saints' fifth and final number-one single in the UK. It also reached the top 10 in Ireland, Italy, the Netherlands, New Zealand and Sweden.

Bo Johan Renck directed the accompanying music video which features the group serenading an arguing couple in bullet time at a high rise apartment block. According to academic analysis, the video helped popularise caffeine as a beverage for the upper class. All Saints promoted "Black Coffee" with live performances on CD:UK, Children in Need, Later... with Jools Holland, Top of the Pops and at the 2000 Smash Hits Poll Winners Party. Much group in-fighting happened during the promotion of the single, prompting tense live renditions and eventually causing the group to controversially split up in 2001.

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