| Walls of Piran | |
|---|---|
Piransko obzidje | |
| Piran, southwestern Slovenia | |
 The Third Wall | |
| Type | Walls |
| Site information | |
| Owner | Municipality of Piran |
| Open to the public | all time |
| Condition | Well-preserved |
| Site history | |
| Built | 7th century onward |
| Materials | Limestone |
The Walls of Piran (Slovene: Piransko obzidje) are the defensive walls of Piran, a coastal town on the Adriatic Sea in southwestern Slovenia. Significant parts of the fortification walls remain well-preserved.