My first name (Patricia) and its derivatives are quite common in the US, but not so much in Germany. A lot of Germans who speak English and know I'm American use the English pronunciation, while others use the German one. Most use the full name, while others use Tricia, which I've always gone by. It can be pretty funny, because some people have told me they didn't realize people were referring to me when they heard somebody using an alternative pronunciation or nickname. I ask people not to use Pat or Patty, but otherwise they can say it however they want or can.