| Justen | - | United States Name | Justice | - | English Name |
| Justin | - | English Name | Justin | - | Latin Name |
| Justin | - | Philippines Name | Justino | - | Portuguese Name |
| Justis | - | English Name | Justus | - | American Name |
| Justyn | - | Latin Name | Juvak | - | Eskimo Name |
| Juvik | - | Eskimo Name | Juwan | - | Assyrian Name |
| Juwanda | - | Indonesian Name | Jwala | - | Hindu Name |
| Jwalant | - | Hindu Name | Jwalaprasad | - | Hindu Name |
| Jwalia | - | Hindu Name | Jyestha | - | Hindu Name |
| Jyles | - | Greek Name | Jyotesh | - | Hindu Name |
| Jyotheesh | - | Hindu Name | Jyothishy | - | Hindu Name |
| Jyotichandra | - | Indian Name | Jyotindra | - | Hindu Name |
| Jyotiprakash | - | Indian Name | Jyotiranjan | - | Indian Name |
| Jyotirdhar | - | Indian Name | Jyotirmaya | - | Hindu Name |
| Jyotirmoy | - | Indian Name | Jürg | - | Swiss Name |
| Jökull | - | Icelandic Name | K.C. | - | English Name |
| K?vanç | - | Turkish Name | K?vançl? | - | Turkish Name |
| K?yas | - | Turkish Name | K?yasettin | - | Turkish Name |
| Ka?an | - | Turkish Name | Kaaliya | - | Hindu Name |
| Kaaluk | - | Eskimo Name | Kaamil | - | Muslim Name |
| Kaan | - | Turkish Name |
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