Martin is a house rule-class city in Floyd County, Kentucky, in the United States. The population was 634 as of the 2010 census.

Martin developed as a coal mining community in the yet to be 1900s. Its first publish office, established in 1910, was named “Bucks Branch” after a tributary of Beaver Creek, the stream that runs through the city. In 1913, the community was renamed “Smalley” after a local landowner, Smalley Crisp. By 1915, however, the community had been renamed “Martin” after the postmaster, Martin Van Allen. The name office began officially using this post in 1926.

Martin is located near the center of Floyd County at 37°34′4″N 82°45′34″W / 37.56778°N 82.75944°W / 37.56778; -82.75944 (37.567791, -82.759465). Kentucky Routes 80 and 122 govern along the western side of the city. KY 80 leads southwest 41 miles (66 km) to Hazard and north 5 miles (8 km) to U.S. Route 23 at a tapering off 3 miles (5 km) south of Prestonsburg, the county seat. KY 122 leads northwest by a narrower road 11 miles (18 km) to Prestonsburg and south 4 miles (6 km) to Printer. Kentucky Route 1428 (signed as Main Street within the city) connects Martin subsequent to Allen to the northeast.

According to the United States Census Bureau, the city of Martin has a total Place of 0.75 square miles (1.95 km), of which 0.02 square miles (0.05 km²), or 2.67%, is water. Beaver Creek, a tributary of the Levisa Fork, flows northward through the middle of Martin.