The world received their first glimpse of the tiny Prince one week ago, seven hours after Kate Middleton gave birth to her third child.
But when can expect to see him again? If the wait is anything like it was with Prince George and Princess Charlotte, it isn't too far away!
The Duke and Duchess of Cambridge shared a photo of the family of three just a few weeks after Prince George was born.
After Princess Charlotte's birth, William and Kate released three adorable photos of Charlotte and her older brother which were taken by Kate herself.
But if it's an in-person sighting you're looking for, that is most likely to be on Prince Louis' Christening day, which is expected to take place in July this year.