| Country | Finland (FI) |
| UN/LOCODE | MHQ |
| Name | Maarianhamina (Mariehamn) |
| Name Without Diacritics | Maarianhamina (Mariehamn) |
| Region | 1 |
| Function Code | 1--4---- |
| Function | Port, Airport |
| Status Code | AI (Code Adopted By International Organization) |
| Date | 1307 |
| Location (UN Format) | 6006N 01957E |