Rayder is a variant of the surname Rayburn, which is of English and Scottish origin. It is believed to be derived from the Old English words ræg meaning to bear and der meaning leader or ruler. The name is thought to have originated in the 13th century, possibly as a occupational surname for a person who led or ruled a group of people. Rayder has been recorded in various forms throughout history, including Ræder, Ræder, and Ræderis. The name is most commonly associated with the English county of Yorkshire, where it was found in the 14th century. Rayder has also been found in other parts of the UK, including Scotland and Wales. The name has also been recorded in the United States, particularly in the early 20th century. Rayder is a rare surname, but it has a long and storied history.