| English | eng-000 |
| Hillingdon | |
| ISO 3166-2 | art-416 | GB-HIL |
| čeština | ces-000 | Hillingdon |
| Deutsch | deu-000 | London Borough of Hillingdon |
| eesti | ekk-000 | Hillingdon |
| français | fra-000 | Hillingdon |
| हिन्दी | hin-000 | हिलिंगडन |
| magyar | hun-000 | Hillingdon |
| Nederlands | nld-000 | Hillingdon |
| bokmål | nob-000 | Hillingdon |
| polski | pol-000 | Hillingdon |
| română | ron-000 | Hillingdon |
| svenska | swe-000 | Hillingdon |