Gad Humphreys (? – October 25, 1859) was an officer in the United States Army and an Indian agent in Florida. He was appointed to his post in 1822. He was supportive of the Indians and tried to help them and protect them from encroachments by White settlers. He was accused of abusing his post by preventing or delaying the return to their owners of fugitive slaves that had taken refuge with the Indians. An investigation was conducted, but none of his accusers were willing to testify. Even so, he was removed from his post in 1830.