Carson, a surname-turned-given-name, is of unknown origin and meaning, but some experts believe it's derived from the Middle English and Scottish words car and carre, meaning "marsh" or "mossy place." It can also come from the Welsh word caer, meaning "fort" or Gaelic word carr, meaning "rock." The -son at the end of the name indicates that a may be a patronymic name. It has been a top-200 boy's name every year since 1999 and has spent much of the 2000s in the top 100. It's the name "Dancing With the Stars" pro Witney Carson and husband Carson McAllister chose for their son's middle name, Jet Carson. Some parents prefer to spell it Karson, Carsyn or Karsyn.
