Probably not, as Tolkien mostly uses the term to refer to whole peoples– the Noldor are Calaquendi, the Sindar are Moriquendi, etc– with Thingol being an individual exception.
But that's beside the point in the case of Legolas. He's a Dark Elf, like his father and grandfather before him.
So... you're a bit of a
Necromancer, huh?
*shrugs* I suppose it's appropriate to this fandom...