"Insatiable" is the debut solo single by Irish recording artist Nadine Coyle. Co-written with Guy Chambers and produced by Ricci Riccardi, the song was released as the lead single from Coyle's debut solo album of the same name (2010). The accompanying music video for "Insatiable" was directed by Wayne Isham and features Coyle performing with a live band against various backdrops. It charted in Ireland, Scotland, the UK and charted on the European singles chart.

"Insatiable" was Coyle's first solo single after seven years as a member of BRIT Award-winning girl group Girls Aloud. During the group's hiatus, Coyle announced plans to release a solo album. Nadine worked with a number of famous songwriters and producers, including Guy Chambers. BBC said the song "showcases a harder, guitar-led sound for the pop singer." Nadine revealed the song was intended to sound "sexy."

The song received its official world premiere on In:Demand on 10 September. Coyle visited The Scott Mills Show on 15 September, giving the song its BBC Radio 1 premiere. However, Coyle failed to make the Radio 1 playlist, resulting in a lack of airplay. Coyle appeared on Paul O'Grady Live. She performed at London's G-A-Y on Saturday, 30 October. Coyle had declined to perform on the X-Factor to promote the single as she claimed it would compromise her vocals and that she "is only interested in performing live" as the single "is such a big song".

The song has received acclaim from contemporary music critics. Popjustice said it "thunders across the horizon like a furious pop battlehorse. We like this a lot."Heat magazine described it as "very good indeed. And massive. And dramatic. And sing-songy. We love it quite a lot, actually."Digital Spy also praised the song, describing it as "a bombastic synthy pop morsel with more swagger than the hardest lad in the upper sixth." It has been called "ballsy and Eighties-influenced", receiving comparisons to The Bangles. Digital Spy also called the single "a bombastic pop chugger – synthy enough for 2010 but not quite modern-sounding."

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