James Hugh O'Neill (January 14, 1892 – April 17, 1972) was an American Catholic priest who served as a chaplain in the United States Army from 1926 to 1952, rising to the rank of brigadier general.

During the Battle of the Bulge Patton desired good weather for his advance, which would permit close ground support by U.S. Army Air Forces tactical aircraft, and requested that O'Neill compose a suitable prayer.

O'Neill complied, and his prayer was printed and distributed to unit members: Almighty and most merciful Father, we humbly beseech Thee, of Thy great goodness, to restrain these immoderate rains with which we have had to contend.

He was promoted to Brigadier General and became Deputy Chief of Chaplains of the United States Army, at Ft Myer, Arlington, Virginia (1948–1952).

He also earned battle stars for the campaigns of Normandy, Northern France, Ardennes, Rhineland, and Central Europe.