McNabb
- County:
- Putnam County
- County Seat:
- No
- Area (mi²):
- 0.177
- State:
- Illinois
McNabb is a village located in Putnam County, Illinois. McNabb has a 2026 population of 274. McNabb is currently growing at a rate of 0.74% annually but its population has decreased by -1.79% since the most recent census, which recorded a population of 279 in 2020.