Just remember that a deed poll is of no legal effect whatsoever. Using one only provides some little evidence of a serious intent to be called by a different name.If I started calling myself Fred Puli, it would not in itself make me Fred Puli, deed poll or no. I would only be Fred Puli in law if the world at large called me by that name. A moment's thought explains why. I could choose an absurd name, such as Alphonso Fussbucketdogfancier von Gigglestein , and have the deed poll to match, but since nobody would call me by that, it could never be treated as my new name.