Kaai is een straat te Sluis in de gemeente Sluis en is gelegen in de Nederlandse provincie Zeeland.
| Postcode | Huisnummers |
|---|---|
| 4524 CK | 16, 18, 18, 18, 18, 18, 22, 24, 28, 30, 32, 34A, 34B, 34, 38, 40, 42, 14, 12, 10, 8, 6, 4, 2; |
| 4524 CL | 25, 23, 21, 19, 17, 15, 11, 11A, 9, 7, 5, 3, 1, 31, 29, 27, 27; |