Middlesborough
- County:
- Bell County
- County Seat:
- No
- Area (mi²):
- 7.384
- State:
- Kentucky
Middlesborough is a city located in Bell County, Kentucky. Middlesborough has a 2026 population of 8,899. Middlesborough is currently declining at a rate of -0.82% annually and its population has decreased by -4.78% since the most recent census, which recorded a population of 9,346 in 2020.