Slovenia
- Assling → Jesenice
- Bischofslack → Škofja Loka
- Celeia → Cilli → Celje
- Egida → Capris → Justinopolis → Caput Histriae → Koper/Capodistria
- Emona → Laibach → Ljubljana
- Marburg → Maribor
- Poetovio → Pettau → Ptuj
- Pirano → Piran
- Capodistria → Koper
- Portorose → Portorož
- Velenje → Titovo Velenje (1981) → Velenje (1991)
- Castra ad fluvium frigidum → Ajdovščina
- Atrans → Trojane
Read more about this topic: List Of City Name Changes