Pet Shop Boys are an English synth-pop duo formed in London in 1981. Consisting of primary vocalist Neil Tennant and keyboardist Chris Lowe, they have sold more than 100 million records worldwide, and were listed as the most successful duo in UK music history in the 1999 edition of The Guinness Book of Records. They are known for commercially successful pop songs with 'highbrow' influences from classical music, opera, film, fashion and literature.

Three-time Brit Award winners and six-time Grammy nominees, since 1984 they have achieved 42 top 30 singles, 22 of these being top 10 hits on the UK Singles Chart, including four UK number ones: "West End Girls" (also number one on the US Billboard Hot 100), "It's a Sin", a synth-pop version of "Always on My Mind", and "Heart". Other hit songs include a cover of "Go West", and their own "Opportunities (Let's Make Lots of Money)", and "What Have I Done to Deserve This?" in a duet with Dusty Springfield. With five US top ten singles in the 1980s, they are associated with the Second British Invasion.

At the 2009 Brit Awards in London, Pet Shop Boys received an award for Outstanding Contribution to Music. In 2016, Billboard newspaper named Pet Shop Boys the number one dance duo/group over the 40 years since the chart's inception in 1976. In 2017, the duo received NME's Godlike Genius Award.