New Zealand first competed in judo at the Munich Olympics Games in 1972.
Thirteen athletes have represented the country at various Olympics and, though no medals have been won, they have enjoyed success at the Commonwealth Games.
South African-born Moira de Villiers is New Zealand's only representative in London.
The 22-year-old will compete in the under-70kg women's event, having overcome a joint injury in 2011 and a dislocated finger earlier this year.
De Villiers is ranked 18th in the world, but is aiming for a top 10 finish at in London, after winning the Commonwealth Judo Championships in Wales earlier this year.
Where and when
Judo: All events will take place at the ExCeL venue from 28 July to 3 August.