Antonio Mennini (born 2 September 1947) is an Italian prelate of the Roman Catholic Church.
He served as the Nuncio to Great Britain from 18 December 2010, having been appointed by Pope Benedict XVI, until 6 February 2017 when Pope Francis transferred him to work in the Secretariat of State in Rome where he is responsible for relations between the Holy See and Italy.
Besides his native Italian, Mennini can speak English, French, Spanish, German, Bulgarian and Russian.