Prince George will begin attending the Westacre Montessori School Nursery in Norfolk in January.
Kensington Palace released the news on their Twitter account, along with a family photo of the Duchess of Cambridge, the Duke of Cambridge, Prince George and Princess Charlotte.
The photo, which was tweeted with a Christmas greeting from the family, is the latest to be released of the family of four.
The Westacre Montessori School Nursery said: "We are looking forward to welcoming George to our nursery where he will get the same special experience as all of our children."