WALTZING Matilda could be third in line to the British throne if the Duchess of Cambridge gives birth to a baby girl.
The royal baby stands a 33 to one chance of being named Matilda according to betting agency Paddy Power.
Alexandra is the hands-down favourite at 11/4 odds hard-on-the-heels of the 150th anniversary of iconic Alexandra Palace in London over the weekend.
The current favourite name for a boy is George at 11/2.
Other favourites include Elizabeth (12/1) and Phillip (33/1) after the baby’s great-grandparents, the Queen and Duke of Edinburgh.
Diana is another popular favourite at 16 to one odds of being the next royal baby’s name.
More unorthodox entries include Maud (66/1), Fergie (500/1) and Nelson (100/1).
The most popular baby names in Australia are William for a boy and Charlotte for a girl, according to the not-for-profit research group McCrindle.
Following changes to the law of succession the first child of the Duke and Duchess of Cambridge will be Prince Williams’s heir whether born a boy or a girl.
The new royal will now also be able to marry a catholic without sacrificing their right to the throne.
Kensington Palace released a statement on Monday morning UK time that the Duchess of Cambridge had gone into labour.
The Duchess of Cambridge has been taken to the Lindo Wing of St Mary’s hospital in Paddington, where Prince William was born in 1982.
Prince William will be with his wife for the birth and politicians and officials will be on hand outside the hospital to bear witness to the occasion.
