Harry and Meghan have named their little boy Archie Harrison.
The name reveal comes hours after they gave the world a first glimpse of their little boy.
The news was announced on Instagram.
The 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 were also present for this special occasion."
The post included a picture of Archie with The Queen, Prince Philip and Meghan's mum Doria.
Earlier today the couple proudly introduced their baby to the world.
The Sussexes have been enjoying the experience of being new parents at their Frogmore Cottage home near the Queen's Windsor Castle residence.
Presenting her son for the first time, Meghan said: "It's magic, it's pretty amazing. I have the two best guys in the world so I'm really happy."
Speaking in St George's Hall at Windsor Castle as her husband held their two-day-old child, Meghan added: "He has the sweetest temperament, he's really calm."
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