Is this a rare name?

The name "J" would you class it as rare? :D

belongs to a friend of mine.

yeah i'd say so.

Everyname is rare, you can only make it once..
It's cewl :)

No,
It is just a letter plus I dont like the letter J,
I like the letter S.

depends. Some people might think so and some not.

well there's only 26 one LETTER names avalible... so I'd say yeah

yeah I would say so.

Yeah id say so, but whoever has the number "9" want it :@

I'd say so yes but I'd also agree with Laurensh1, every name is unique. =]

Yes, it is. It's not been on in a while though, lol.