| Type: | commune |
| County: | Dâmbovița |
| Vulcana-Băi | |
| Leader Name: | Emil Drăghici |
| Leader Party: | Independent |
| Leader Term: | 2020 - 2024 |
| Coordinates: | 45.0833°N 47°W |
| Elevation: | 380 |
| Area Total: | 28.15 |
| Population Total: | auto |
| Postal Code: | 137535 |
| Area Code: | +(40) 245 |
Vulcana-Băi is a commune in Dâmbovița County, Muntenia, Romania with a population of 2,934 people as of 2021. It is composed of three villages: Nicolaești, Vulcana-Băi, and Vulcana de Sus.
The commune is located in the northern part of the county, away from the county seat, Târgoviște.
The Orthodox, founded in 1654, is situated on the territory of the commune.