Xenomania is an English songwriting and production team founded by Brian Higgins and based in Kent, England. Formed by Higgins with his Creative Director Miranda Cooper and Business Director Sarah Stennett of First Access Entertainment, Xenomania has written and produced for renowned artists such as Cher, Kylie Minogue, Dannii Minogue, Sophie Ellis-Bextor, Pet Shop Boys, The Saturdays and Sugababes. In particular, all but one of Girls Aloud's studio albums have been entirely written and produced by Xenomania. Sugababes' "Round Round" and Girls Aloud's "Sound of the Underground" have been credited with reshaping British pop music for the 2000s. Gabriella Cilmi's "Sweet About Me" and Girls Aloud's "The Promise" were named Best Single at the ARIA Music Awards of 2008 and the 2009 BRIT Awards, respectively.

The team has been referred to as "a Phil Spector" and "a Motown of the 21st-century". Higgins himself has said that Xenomania aspires to be a modern-day version of RAK Records. Of Higgins and Xenomania, Girls Aloud's former manager Louis Walsh says, "He just makes great songs for radio. They just jump out at you and stay in your brain." There are wide influences present in their productions, including electronic, glam rock, Motown soul, punk, and more traditional pop music. The name "Xenomania" means, according to Higgins, "the exact opposite of Xenophobia [...] a love of everything, of all cultures." Current members of the Xenomania writing and production team are Higgins and Cooper. Long term members Tim Powell and Nick Coler left in 2010. Xenomania also includes a house band who work on potential songs; members include Florrie Arnold (drums) Kieran Jones (guitar, bass) and Jason Resch (guitar, keyboards). French remixer Fred Falke also frequently works with Xenomania.

Xenomania started a "record label" of the same name in 2008, developing artists and working on material before looking for major label deals. Artists include Alex Gardner, Jessie Malakouti, Brooke X, Mini Viva, and Vagabond.