| Latin name | Vernacular name (AACR2 form) | Country code |
|---|---|---|
| Iaurini* | Györ (Hungary) | hu |
| Ienae* | Jena (Germany) | gw |
| Ihenae
see Ienae |
||
| Ilerdae* | Lérida (Spain) | sp |
| Ingoldstadiensis
see Ingolstadii |
||
| Ingolstadii* | Ingolstadt (Germany) | gw |
| Insulae ad lacum Acronium* | Lindau (Bavaria, Germany) | gw |
| Iscae Dumnoniorum* | Exeter (England) | enk |
| Isenaci* | Eisenach (Germany) | gw |
| Islebiae
see Islebii |
||
| Islebii* | Eisleben (Germany) | gw |
| Isnae
see Isnae in Algauia |
||
| Isnae in Algauia* | Isny im Allgäu (Germany) | gw |
| Iuliae Augustae Dertonae
see Dertonae |
||
| Iuliodunum* | Loudun (France) | fr |
| Iutreboci* | Jüterbog (Germany) | gw |