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