The answer is no. You can be Wiccan and use Celtic practices or beliefs but you could not call yourself a Celtic Pagan. Wicca in itself is a religion that incorporates different Pagan religions into one. Celtic Paganism is a different religion with a separate belief structure. The two are not the same. I consider myself an Eclectic Pagan because I incorporate beliefs and ideas from multiple Pagan religions including Celtic, Norse, Egyptian and Roman Paganism as well as Wicca and a few others.