I am in an odd situation, as I could claim to be any of three very different religions:
I was told last year, by a Catholic priest, that since I was baptised as an infant into the Catholic church, I am still, and will always be, a Catholic.
I've never da'd or been df'd. Although inactive, I'm still likely being counted as a Jehovah's Witness.
However, my personal beliefs and practices are entirely Pagan.