François Nicoullaud was a member of the French diplomatic service from 1964 to 2005. He served in Chile, Berlin, Bombay as Consul general, and as French ambassador to Hungary and to Iran as well as at the French mission to the UN. He served also in Paris, mainly in the fields of non-proliferation and international culture and development, as well as in the ministries of Interior and Defence. Since the end of his appointment in Tehran (2001–2005), François Nicoullaud has closely followed the Iranian situation, writing numerous articles for French and international newspapers and reviews. He is also the author of an essay on Iran, "The Turban and the Rose," published in 2006.