Raffaele Castielli (5 March 1927 – 3 August 2018) was an Italian bishop, ordinary of the Roman Catholic Diocese of Lucera-Troia.
He was ordained a priest on July 9, 1950.
He was appointed first bishop of the newly merged Diocese of Lucera-Troia on February 11, 1987, receiving his episcopal consecration on March 25, 1989 from Archbishop Salvatore De Giorgi.