Rev. George Mathan (25 September 1819 – 4 March 1870), a.k.a. Rev. George Matthan, Rev. George Mathen, Geevarghese Kathanar or Mallapallil Achen (Malayalam: ജോർജ്ജ് മാത്തൻ, was a Saint Thomas Anglican priest (Kathanar), Malayalam grammarian and writer of the 19th century Kerala.