Nicholas de Crioll (Cryoyll, Kerrial or Kyriel) (died c. February 1272), of a family seated in Kent, was Constable of Dover Castle and Keeper of the Coast during the early 1260s. His kinsman Bertram de Criol (died 1256) had distinguished himself in these offices during the preceding 20 years and both were near predecessors of the eminent Warden of the Cinque Ports, Stephen de Pencester (of Penshurst).