Constituencies
I
| Name | Notes |
|---|---|
| Ilford | |
| Ilford North | |
| Ilford South | |
| Ilkeston | Full name (in Craig 2,3,4) Derbyshire, Ilkeston |
| Ince | Full name (in Craig 2,3,4) Lancashire, Ince |
| Inverclyde | |
| Inverness | Full name (in Craig 3,4) Inverness-shire and Ross and Cromarty, Inverness |
| Inverness District of Burghs | |
| Inverness East, Nairn and Lochaber | |
| Inverness, Nairn and Lochaber | |
| Inverness, Nairn, Badenoch and Strathspey | |
| Inverness-shire | |
| Ipswich | |
| Isle of Ely | |
| Isle of Thanet | Full name (in Craig 2,3,4) Kent, Isle of Thanet |
| Isle of Wight | |
| Islington Central | |
| Islington East | |
| Islington North | |
| Islington South |