| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Heck | - | Scottish | ||
| Heckie | - | Scottish | ||
| Hendry | - | Scottish | ||
| Iagan | - | Scottish | ||
| Iain | - | Scottish | ||
| Ian | EE-ən (English) | Scottish, English | ||
| Innes | - | Scottish | ||
| Iomhar | - | Scottish | ||
| Iona (1) | ie-ON-ə (English) | English, Scottish | ||
| Irvine | UR-vien, UR-vin | English, Scottish | ||
| Irving | UR-ving (English, Scottish) | English, Scottish, Jewish | ||
| Iseabail | - | Scottish | ||
| Ishbel | - | Scottish | ||
| Isla | IE-lə | Scottish | ||
| Islay | IE-lə | Scottish |