Charles John Brown is an American prelate of the Roman Catholic Church who has been serving as an apostolic nuncio since 2012. He is currently the apostolic nuncio to the Philippines. Before entering the diplomatic service of the Holy See, Brown worked at the Congregation for the Doctrine of the Faith (CDF).

The Apostolic Nunciature in the Philippines is a top-level diplomatic mission assigned by the Holy See to the Philippines, located at 2140 Taft Avenue, Malate, Manila.