Postal codes in the Cayman Islands

Postal codes in the Cayman Islands are used by the Cayman Islands Postal Service to route inbound mail to groups of post office boxes in the country. A postal code typically consists of an island code, a hyphen separator, and a section code. They were introduced in 2006.

The name of each island functions as the "post town"; the name of the settlement or locality is not used to route mail. There are only three island codes: KY1 for Grand Cayman, KY2 for Cayman Brac, and KY3 for Little Cayman. Each of these is subdivided into section codes according to which local post office handles a particular group of boxes.

A single sheet portable document is available from CIPS listing all post codes in the archipelago.