Here are some great names for cats starting with the letter I.
| Icarus | Inca | Isabella |
| Ice | Indi | Isabelle |
| Icecream | India | Isadora |
| Iceman | Indiana | Isis |
| Icicle | Indigo | Itchy |
| Icon | Indira | Itsy |
| Iggy | Ink | Ivan |
| Igloo | Inkspot | Ivory |
| Igor | Inksy | Ivy |
| Ike | Inky | Izzy |
| Imogen | Isaac |