"One of the undoubted highlights of the summer was the fantastic community spirited, magenta and pink clad Ambassadors, who gave up their time to welcome the world. I am delighted that we have delivered on our promise to build on the remarkable success of the volunteers during the Games with the expansion of the Ambassadors Programme.
"Armed with guides and information about the city, they are brilliantly placed to tempt visitors and Londoners alike with the smorgasbord of world class shops, theatres and restaurants that are on offer."
More top news
Charaf Elmoudden, 26, has been found guilty at Harrow Crown Court of burgling pop star Rita Ora's home.
Marcus Willis, a current club coach ranked 772 in the world, came through six qualification matches to reach this year's tournament.
Mouth artist Henry Fraser has posted a video showing his works from the first 18 months of painting and drawing.