| Country | United Kingdom (GB) |
| UN/LOCODE | TYD |
| Name | Tyddewi (St David's) |
| Name Without Diacritics | Tyddewi (St David's) |
| Region | PEM |
| Function Code | 1-3----- |
| Function | Port, Road |
| Status Code | AA (Approved By National Government Agency) |
| Date | 701 |
| Location (UN Format) | 5153N 00515W |