George Kellogg (June 19, 1812 – 1901) was an American inventor and patent expert.
From 1838 to 1841, he was principal of the Sumter Academy in Sumterville, South Carolina.
He was for some time a manufacturer in Birmingham, Connecticut, and was in the United States revenue service from 1863 to 1866.
He established factories in England, was a patent expert, and patented a machine for making jack chains (1844), a dovetailing machine (1849), a type-distributing machine (1852), and improved surgical instruments (1853).
He married Jane Elizabeth Crosby (1816–1892) and had a child, Clara Louise Kellogg.