Taking to Instagram, Harry and Meghan revealed their newborn's name is Archie Harrison Mountbatten Windsor.
"The Duke and Duchess of Sussex are pleased to announce they have named their first born child: Archie Harrison Mountbatten-Windsor," a statement read.
"This afternoon, Their Royal Highnesses introduced Her Majesty The Queen to her eighth great-grandchild at Windsor Castle. The Duke of Edinburgh and The Duchess' mother was also present for the special occasion."
Earlier today, the couple finally introduced their beautiful baby boy to the world.
“He’s just been the dream so it’s been a special couple of days," Meghan declared.
“It’s magic, it’s pretty amazing. I have the two best guys in the world so I’m really happy.”
As her husband held their son, Meghan added: “He has the sweetest temperament, he’s really calm.”
As they both laughed, Harry said: “I don’t know who he gets that from.”
Meghan added: “He’s just been the dream so it’s been a special couple of days.”
Baby Sussex was sleeping soundly, wrapped in a white blanket and wearing a delicate white knitted hat.
Asked how he was finding parenting, Harry said: “It’s great. Parenting is amazing.
“It’s only been two-and-a-half days, three days, but we’re just so thrilled to have our own little bundle of joy.”
Prince Harry Says He's Had 'About Two Hours' Sleep' Since Welcoming Baby Boy