Guy George Gabrielson (May 22, 1891 – May 1, 1976) was a Republican politician from New Jersey. He served as chairman of the Republican National Committee from 1949 to 1952, and was a member of the New Jersey General Assembly from 1925 to 1929, and was its Speaker in 1929. An attorney who later became a corporate executive, after leaving elective politics, Gabrielson turned to Republican politics. He rose through the ranks of Republican activists. He became a member of the Republican National Committee in 1944 and its chairman in 1948, leaving both posts in 1952.