The design will appear on items from posters to commemorative tea cups and tea towels in the run up to the royal celebration next year.
It features a crown above the Union flag with rows of diamonds down both sides.
The official emblem can be downloaded for free from the Monarchy website and can be used by companies, groups and individuals for activities associated with the Diamond Jubilee celebrations such as community and national events, publications, retail and merchandising.
It was created by a 10-year old girl who won a competition on Blue Peter to design the official logo.
Previously official logos from the Queen’s Silver Jubilee and Golden Jubilee have been created by professional designers.
The Royal Family is also gearing up for the wedding of Prince William and Kate Middleton in April. Only approved images of Prince William and his fiancée can be used on merchandise. Sales of commemorative souvenirs for the Royal wedding could boost the retail sector by £620m.
Procter & Gamble is launching a commemorative Fairy Liquid bottle to mark the wedding.