Gerald G. Byrne (September 12, 1890 – January 25, 1952) was a politician in Newfoundland. He represented St. John's City East in the Newfoundland House of Assembly from 1928 to 1934. He was born in St. John's, Newfoundland and Labrador and was educated at Saint Bonaventure's College. He was one of the so-called "First Five Hundred" to enlist in the Royal Newfoundland Regiment at the start of World War I. Byrne saw action during the Gallipoli Campaign, was injured at Beaumont Hamel in 1916 and was sent back to Newfoundland in 1917. He became military secretary for the Department of Militia. He was elected to the Newfoundland assembly in 1928 and was reelected in 1932.