| Name | Total | Name | Total |
|---|---|---|---|
| I de Bourbon-Vendome | 1 | Ingham | 5 |
| Ibbotson-Gale | 1 | Ingle | 1 |
| Ifferley, de | 2 | Ingoldby | 1 |
| Igoe | 1 | Ingram | 1 |
| Ille | 1 | Ingwersen | 1 |
| Illustrious, the | 1 | Inhelder | 1 |
| Inch | 1 | Inman | 4 |
| Ingalsbie | 1 | Innes | 1 |
| Ingel Aniel | 1 | Innis | 1 |
| Ingel Erp | 2 | Inskip | 23 |
| Ingel Gerraint | 2 | Insley | 1 |
| ingen Beli | 1 | Insole | 10 |
| ingen Boite | 1 | Insote | 4 |
| ingen Cináeda | 2 | Ippel | 1 |
| ingen Cinioch | 2 | Irby, de | 1 |
| ingen Donnchad | 1 | Ireland | 3 |
| ingen Dúngaile | 1 | Irvine | 2 |
| ingen Eanfrith | 1 | Irving | 1 |
| ingen Entfidich | 2 | Irwin | 3 |
| ingen Eochaid | 1 | Isaac | 3 |
| ingen Erb | 2 | Islay, of | 1 |
| ingen Feradach | 1 | Italy, of | 2 |
| ingen Flann Sinna | 1 | Ivall | 1 |
| ingen Máel Coluim | 1 | Ives | 1 |
| ingen Maíl Coluim | 1 | Iveson | 1 |
| ingen Óengus? | 1 | Izzard | 8 |
| ingen Uilliam | 2 | - | - |