| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Isobel | - | Scottish | ||
| Ivor | IE-vawr (English), EE-vawr (English) | Irish, Scottish, Welsh, English (British) | ||
| Jamesina | - | Scottish | ||
| Jamie | JAY-mee | Scottish, English | ||
| Jean (2) | JEEN | English, Scottish | ||
| Jessie (1) | JES-ee | Scottish, English | ||
| Jock | JAHK | Scottish | ||
| Jockie | - | Scottish | ||
| Jocky | - | Scottish | ||
| Keavy | KEE-vee | Irish, Scottish | ||
| Keir | - | Scottish, English (Rare) | ||
| Keith | KEETH | English, Scottish | ||
| Keitha | - | Scottish | ||
| Kenina | - | Scottish | ||
| Kenna | - | Scottish |