To find a suitable Welsh equivalent, we need more information:
* What does "Ior" stand for? Is it a shortened form of a name like "George" or "Igor"? Or is it a nickname based on a characteristic or a place?
* What is the intended meaning? Are you looking for a Welsh name with similar connotations, or just a name that sounds similar?
Once you provide more context, I can help you find a suitable Welsh name for "Ior".