The name Cayman is a boy's name . Cayman and is often added to lists like Unique Baby Names: Unusual and Rare and discussed in our forums with posts like "Love, Like, Lose -- Outlandish/Guilty Pleasures edition!".
From the experts:
This name's connection to the Caribbean Cayman Islands gives it a nice resortish feel, while still feeling like an in-tune-with-style boy's name.