Fn2 is a shortened form of the surname Fenton, which is of English origin. The name is derived from the Old English words fent meaning fence and n meaning son. Fenton has been recorded since the 13th century, with the first recorded bearer being a William Fenton in 1254. The name has undergone various spellings and variations throughout history, including Fentyn, Fentyns, and Fentynge. Today, the name is found in many countries, including the United Kingdom, the United States, and Australia. It is also borne by several notable individuals, including Sir John Fenton, a British army officer and politician.