Justin de Villeneuve, born Nigel Jonathan Davies, was born in London, 1939. He is best known to have been supermodel Twiggy's manager from 1966 to 1973.

From 1975 to 1977, he co-managed the British proto-punk rock band Doctors of Madness as well as many more big names later on. De Villeneuve is still active in his working field.