George G. Fogg (May 26, 1813 - October 5, 1881) was a United States Senator and diplomat from New Hampshire. Born in Meredith, Center, he pursued classical studies and graduated from Dartmouth College in 1839. He studied law at Meredith and at the Harvard Law School, was admitted to the bar in 1842 and commenced practice at Gilmanton Iron Works, New Hampshire. He moved to Concord in 1846 and was a member of the New Hampshire House of Representatives and secretary of State of New Hampshire that year. He was a newspaper publisher from 1847 to 1861, and reporter of the New Hampshire Supreme Court from 1856 to 1860.
Fogg was secretary of the Republican National Executive Committee in 1860, and aws appointed by President Abraham Lincoln as Minister Resident to Switzerland, holding that office from 1861 to 1865. He was appointed as a Republican to the U.S. Senate to fill the vacancy caused by the resignation of Daniel Clark and served from August 31, 1866, to March 3, 1867; he was not a candidate for election to the Senate in 1866. He was editor of the Concord Daily Monitor and died in Concord in 1881; interment was in Blossom Hill Cemetery.