Kazlje | |
|---|---|
| Coordinates: 45°45′50.09″N 13°54′30.12″E / 45.7639139°N 13.9083667°E | |
| Country | |
| Traditional region | Littoral |
| Statistical region | Coastal–Karst |
| Municipality | Sežana |
| Area | |
• Total | 7.25 km2 (2.80 sq mi) |
| Elevation | 338.5 m (1,111 ft) |
| Population (2002) | |
• Total | 168 |
Kazlje (pronounced [ˈkaːzljɛ]) is a village in the Municipality of Sežana in the Littoral region of Slovenia.

The local church, built just outside the settlement, is dedicated to Saint Lawrence and belongs to the Parish of Tomaj.