Kensington Palace shared a series of images of the adorable bub with his parents, Kate Middleton and Prince William, in Clarence house, alongside members of the royal family.
The official photographer, Matt Holyoak, previously shot images for the royal family, including taking photos for The Queen and The Duke of Edinburgh's 70th wedding anniversary.
'I was truly honoured at being asked to take the official photographs at the christening of Prince Louis, and to witness at first hand such a happy event. Everyone was so relaxed and in such good spirits, it was an absolute pleasure. I only hope I have captured some of that joy in my photographs,' Holyoak said in an official statement.
In attendance at the royal service was Prince Charles and Camilla Parker-Bowles, Prince Harry and his new bride Meghan Markle, Carole and Michael Middleton, Pippa Middleton and James Matthews, and James Middleton.
See also: What really happened at Prince Louis' Christening
See also: Princess Charlotte tells of photographers at royal christening
A statement released by the royal family also revealed Louis' Godparents were Nicholas van Cutsem, Guy Pelly, Harry Aubrey-Fletcher, Laura Meade, Robert Carter and Lucy Middleton.
Prince William and Kate Middleton have opted for friends, rather than immediate family members, as is custom for royal children.
Get all the details of the royal christening, in the latest episode of the New Idea Royals podcast. You can subscribe via iTunes http://po.st/Cj1hPZ or OMNY http://po.st/xGvgbw
