The name Dover is a boy's name of British origin. Dover 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:
Two-syllable place-names are stylish, and this one is attached to a British city noted for its white chalk cliffs, but there are a couple of minuses: associated with the fish, Dover sole, and also rhymes with the doggy Rover.