Prince William popped the question to girlfriend of eight years, Kate Middleton, during a holiday in Kenya in October and she consented.
Their wedding will take place next year, but no date has been announced.
The couple announced their engagement in a statement.
"The Prince of Wales is delighted to announce the engagement of Prince William to Miss Catherine Middleton.
"The wedding will take place in the Spring or Summer of 2011, in London. Further details about the wedding day will be announced in due course.
"Prince William and Miss Middleton became engaged in October during a private holiday in Kenya. Prince William has informed The Queen and other close members of his family. Prince William has also sought the permission of Miss Middleton¹s father.
"Following the marriage, the couple will live in north Wales, where Prince William will continue to serve with the Royal Air Force."
