Prince Louis is following in his new aunt, Meghan Markle's footsteps.
The official statement was made via the Kensington Palace Twitter account, where they announced the ceremony will happen on 9th July at The Chapel Royal, St James's Palace, London.
Sister Princess Charlotte was also christened about two months after Kate gave birth to her.
Jessica Bridge of Ladbrokes told the Express: 'As with George and Charlotte, the Duke and Duchess chose close and trusted friends and aides, rather than immediate family members, and the odds suggest that will be the same with little Prince Louis'.
This follows on from the announcement that Meghan and Harry will take a trip to Ireland.
Rapper XXXTentacion shot and killed in Florida
XXXTentacion has faced several legal issues and was now awaiting trial on charges that he beat his pregnant girlfriend. Videos of what appeared to be Onfroy unresponsive in the driver seat of a vehicle circulated on social media Monday.
Prince George was christened in the same location in 2013.
With Prince William in the Middle East on official duties at the end of June, his christening is likely to fall some time in July. The Duke and Duchess of Cambridge will share photos but will keep the occasion as private as possible.
"Judging by the previous christenings, and the importance of the day for the family, Louis' christening will be a private affair, perhaps no surprise there".
Catherine - who also has four-year-old son Prince George and three-year-old daughter Princess Charlotte with William - recently admitted she "cherishes" spending quality time with her family.
Prince Louis' older siblings Prince George and Princess Charlotte.