Rumours that their first child would have the unusual moniker surfaced last month, with the name even trending on Twitter.
Kim Kardashian and Kanye West
Now, according to reports in the US, the couple have confirmed the name five days after Kim gave birth in LA.
TMZ have reportedly witnessed a signed birth certificate bearing the name North West, which has been signed by the 32-year-old reality star and Kanye, 36.
The revelation ends days of speculation over what the couple were going to name the baby girl. Other rumoured options included Kaidence Donda, in memory of Kanye's late mother.
According to US Weekly, Kimye are already referring to their little girl by her nickname, 'Nori'.
And no, she doesn't have a middle name.
Sounds like she got off lightly.
Who's the mumma? Kim Kardashian Who's the daddy? Kanye West Baby ETA: Next year Interesting fact: Kim's difficulty conceiving the couple's second child was chronicled in 'Keeping Up With The Kardashians', before confirming she was pregnant with a son.
Who's the mumma? Coleen Rooney Who's the daddy? Wayne Rooney. Maybe you've heard of him. Baby ETA: January Interesting fact: This will be the third child for the happy couple.
Who's the mumma? Sam Faiers Who's the daddy? Baby ETA: Early 2016 Interesting fact: Sam confirmed her baby news on Instagram.
Who's the mumma? Keira Knightley Who's the daddy? James Righton Baby ETA: Spring 2015 Interesting fact: Keira and James tied the knot in May 2013. This will be their first baby.
Who's the mumma? Katherine Jenkins Who's the daddy? Andrew Levitas Baby ETA: Late 2015 Interesting fact: The couple shared their baby joy with an adorable snap on Instagram of a pair of pink shoes.
Who's the mumma? Olivia Colman Who's the daddy? Ed Sinclair Baby ETA: Summer 2015 Interesting fact: The 'Broadchurch' actress has two children already with her writer husband, Ed.
Who's the mumma? Katie Halil Who's the daddy? Howard Donald Baby ETA: Early 2016 Interesting fact: This will be the first couple for the couple, who married secretly earlier this year.
Who's the mumma? Kelly Clarkson Who's the daddy? Brendan Blackstock Baby ETA: Early 2016 Interesting fact: Kelly confirmed her baby news in a typically Kelly Clarkson-esque fashion, by claiming she was "totally pregnant" during a live show.