Fleming-Neon is a house rule-class city in Letcher County, Kentucky, in the United States. The population was 770 at the 2010 census, down from 840 at the 2000 census.

The city was acknowledged by the Elkhorn Coal Corporation which moved into the area in 1913. Fleming was the location of the mine and was named for its first president, George W. Fleming. A city named “Chip” existed close the community that became Fleming; it was speedily built happening and served as a trading center for the manageable coal towns. The train that hauled the coal out of Fleming would make stops in Neon. Local tradition holds that the conductor would holler instructions to people climbing aboard the train to “Knee On” and this was corrupted into the present name, replacing Chip. In 1977, the two towns were combined into Fleming-Neon during their municipal raptness by the General Assembly.

Fleming-Neon is located in eastern Letcher County at 37°11′40″N 82°42′21″W / 37.19444°N 82.70583°W / 37.19444; -82.70583 (37.194421, -82.705937). It is bordered to the east by the unincorporated community of McRoberts. Whitesburg, the county seat, is 12 miles (19 km) to the southwest.

According to the United States Census Bureau, the city of Fleming-Neon has a total Place of 1.6 square miles (4.2 km), of which 0.53 acres (2,127 m²), or 0.05%, are water. The city is in the valleys of the Wrights Fork and Yonta Fork, part of the upper watershed of the North Fork of the Kentucky River.