What is their full name? David Edward Walliams. How old is David Walliams? David Walliams is 49 years old. When is David Walliams birthday? David Walliams birthday is in August the 20th 1971. How much book does David walliams have. David Walliams wrote 26 books. David Walliams has 1 child and one wife. David Walliams as lives in london. David Walliams is from the United Kingdom in London David Walliams has been an illustrator ever since 2008 to 2021