Darenth

Pronounced, Daren. The most unique name you can possibly think of and which is not even pronounced the way you read it. *th is omitted*
Only one person owns this name. Wikipedia would still give you a definition of it, as a village and civil parish in the Dartford District of Kent, England. The parish is located to the south-east of Dartford town; the village is three miles (4.8km) from there. So at least there is some existence in this world.