Originally Posted by
OFBSLF
Difficult names, ahh.
My late uncle was christened Vyacheslav Aleksandrovich N....nitsky. Sometime at or after Ellis Island, it was changed to Vyacheslav Alexander N....
He went by "Alex".
No, there shouldn't be any prerequisite to change it. You can be called whatever you want. Although, after trying to spell it to someone over the phone just once...
I know how he felt. My full name is Ilia Ike Ch.....ze. I've gone by Ike all my life.