James Henry Ambrose Griffiths

Styles of James Henry Ambrose Griffiths

Reference style	The Most Reverend
Spoken style	Your Excellency
Religious style	Monsignor
Posthumous style	none

James Henry Ambrose Griffiths (July 16, 1903—February 24, 1964) was an American prelate of the Roman Catholic Church. He served as an auxiliary bishop of the Archdiocese of New York from 1950 to 1964.

James Griffiths was born in Brooklyn, New York, to James Henry and Helen Agatha (née O'Neil) Griffiths. He received his early education at St. Augustine's Academy from 1915 to 1919. He then attended St. John's University in Brooklyn, where he earned a Bachelor of Arts degree in 1923. He studied for the priesthood at the Almo Collegio Capranica and the Pontifical Gregorian University, both in Rome. He received a doctorate in theology from the Gregorian in 1927.

Griffiths was ordained a priest in Rome on March 12, 1927. Following his return to New York, he was assigned as a curate at St. Joseph's Church in Babylon, where he remained for one year. He then served at Our Lady of Mercy Church in Queens (1928–29) and at St. Augustine's Church in Park Slope (1929–31). In addition to his pastoral duties, he was an instructor of New Testament scripture at the Dominican Normal School in Amityville from 1927 to 1929.