Gilliam
- County:
- Saline County
- County Seat:
- No
- Area (mi²):
- 0.248
- State:
- Missouri
Gilliam is a city located in Saline County, Missouri. Gilliam has a 2026 population of 177. Gilliam is currently growing at a rate of 0.57% annually and its population has decreased by 0% since the most recent census, which recorded a population of 177 in 2020.