Olla
- County:
- LaSalle Parish
- County Seat:
- No
- Area (mi²):
- 3.933
- State:
- Louisiana
Olla is a town located in LaSalle Parish, Louisiana. Olla has a 2026 population of 1,294. Olla is currently growing at a rate of 0.15% annually but its population has decreased by -0.31% since the most recent census, which recorded a population of 1,298 in 2020.