Ernest Joseph Dennen (September 6, 1866 – January 22, 1937) was an American Episcopal clergyman.
He was the founder and supreme director of the Order of Sir Galahad, which was an organization for Anglican and Episcopal boys and men.
[1] The son of Charles Oscar and Josephine (Day) D., he was born in Naugatuck, Connecticut on September 6, 1866.
From 1905 to 1914, he served as rector of St. Stephen's Memorial Episcopal Church in Lynn, Massachusetts.
From 1929 until the end of his life, he served on staff at Boston's Cathedral Church of St.