Gabriel Endresen Moseid (10 October 1882 – 4 August 1961) was a Norwegian politician for the Farmers' Party. He was elected to the Norwegian Parliament from Vest-Agder in 1922, and was re-elected on seven occasions. He had previously served as a deputy representative during the term 1919–1921. On the local level, Moseid was a member of Vennesla municipality council from 1910 to 1922, serving the last term as mayor. Moseid was the grandfather of Edvard Moseid.