Crichton \c-rich-ton, cr(i)-chton\ as a boy's name is a variant of Creighton (Scottish, Middle English, Old English), and the meaning of Crichton is "border or boundary settlement".
The baby name Crichton sounds like Crockett and Crocket. Other similar baby names are Criston, Cristen, Crayton, Crofton and Croffton.