Reginald "Reggie" Foster (born November 14, 1939) is an American Catholic priest and friar of the Order of Discalced Carmelites.
From 1970 until his retirement in 2009, he worked in the Latin Letters section of the Secretariat of State in the Vatican, formerly known as Briefs to Princes.
He is an expert in Latin literature and an influential teacher of Latin, including 30 years at the Gregorian University in Rome and free summer courses that he has continued after returning to Milwaukee.