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| Name | Total | Name | Total | Name | Total | Name | Total | Name | Total |
|---|---|---|---|---|---|---|---|---|---|
| Innselman | 1 | Immaculata | 1 | Ivar | 1 | Ingram | 1 | Iddenden | 1 |
| Iverson | 3 | infancy | 1 | Iduberga | 2 | Irma | 1 | Inman | 1 |
| Innes | 3 | Isabella | 6 | Ingonde | 2 | Irving | 1 | Ingilby | 1 |
| Ifkovits | 1 | In-Law | 1 | Ismannia | 1 | Insley | 2 | Iwardby | 1 |
| Isles | 3 | Ingle | 1 | Irene | 1 | Ironmonger | 12 | Ingaldesthorpe | 1 |
| Italy | 15 | Irish | 1 | Isaacs | 1 | Isham | 22 | Ingild | 1 |
| Ireland | 35 | Ingleton | 1 | Iselt | 4 | Idonea | 1 | Itermon | 1 |
| Ivrea | 2 | Isaac | 1 | Izard | 1 | Ivey | 1 | IsaacJacob | 1 |
| Isabel | 7 | Ivarsson | 2 | Irvin | 2 | Ivy | 1 | - | - |