Rumours that their first child would have the unusual moniker surfaced last month, with the name even trending on Twitter.
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.