Answer:
False because his full name includes his middle name which is thomas. His full name including his first, middle, and last name is Andrew Thomas Wiggin. But becaus emiddle names aren't extremely important and when someone sees a full anme it is usually just te first and last name, Andsrew Wiggin is correct. His true name (Andrew Wiggin) is mentioned a few times throughout the novel and his full name is mentioned once. So the answer is true.