Agnostics accept the possible validity of all religions including atheism.
I don't know if I'm really agnostic, I believe in a God that accepts all religions (inclusing atheism) as human inventions to comprehend His existence. Therefore I don't particularly believe that one religion may be correct, but rather that each is likely to be as correct as the next one. One may be more accurate than others, but compared to the Truth of God, this heightened validity would be infintismally small and unimportant. There may be a name for that belief but I still consider myself agnostic as I'm pretty sure that's a large category (which is kind of the point)