| City | Country |
|---|---|
| Igarassu | Brazil |
| Inagi | Japan |
| Isulan | Philippines |
| Itanhaem | Brazil |
| Ipil | Philippines |
| Issy-les-Moulineaux | France |
| Ivanteyevka | Russia |
| Izumiotsu | Japan |
| Ixtaczoquitlan | Mexico |
| Inowroclaw | Poland |
| Ivry-sur-Seine | France |
| Ioannina | Greece |
| Inhambane | Mozambique |
| Itanagar | India |
| Iba | Philippines |
| Ibiza | Spain |
| Iganga | Uganda |
| Iwakura | Japan |
| Inverness | United Kingdom |
| Isiolo | Kenya |
| Inuma | Japan |
| Invercargill | New Zealand |
| Igualada | Spain |
| Igdir | Turkey |
| Inongo | Congo (Kinshasa) |
| I-n-Salah | Algeria |
| Ipu | Brazil |
| Imisli | Azerbaijan |
| Ixhuatlancillo | Mexico |
| Itambe | Brazil |
| Ischia | Italy |
| Isparta | Turkey |
| Ijevan | Armenia |
| Impfondo | Congo (Brazzaville) |
| Ismayilli | Azerbaijan |
| Inirida | Colombia |
| Izamal | Mexico |
| Ilkley | United Kingdom |
| Illizi | Algeria |
| Isla Mujeres | Mexico |
| Imsida | Malta |
| Inverurie | United Kingdom |
| Ialoveni | Moldova |
| Ifield | United Kingdom |
| Igny | France |
| Izola | Slovenia |
| Iarpur | India |
| Imamnagar | India |
| Isola delle Femmine | Italy |
| Iswaripur | India |