Hanson-Thomas Houses were two adjoining historic homes located at Frederick, Frederick County, Maryland, United States. They were adjoining three-story, brick dwellings, with Federal-style details. They were the homes of two Maryland patriots, one of whom, John Hanson (1715-1783), was President of the United States In Congress Assembled (1781-1782). The adjoining home was that of John Hanson's son-in-law, Dr. Philip Thomas (1747-1812), a prominent physician in Frederick County.
The houses were listed on the National Register of Historic Places in 1972, and delisted in 1982, after being partially demolished for reconstruction.