my friends friend had that name and i instantly loved the name!! it is pretty unique.
are you aware of its origens? I think it might be eastern european.
all i know is it's an old irish name. should i ever decide to have kids and i have a girl i'll name her siobhan....which would be so funny, a latin girl w/the name siobhan, they'll think she comes from the hood or something. lol
hahahaha yeah def