The Collaborative International Dictionary of English v.0.48:

Mohawk \Mo"hawk\, prop. n.
   1. (Ethnol.) One of a tribe of Indians who formed part of the
      Five Nations. They formerly inhabited the valley of the
      Mohawk River.
      [1913 Webster]

   2. One of certain ruffians who infested the streets of London
      in the time of Addison, and took the name from the Mohawk
      Indians. [Slang] --Spectator. Macaulay.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Mohawk
    n 1: a member of the Iroquoian people formerly living along the
         Mohawk River in New York State
    2: the Iroquoian language spoken by the Mohawk
    3: haircut in which the head is shaved except for a band of hair
       down the middle of the scalp [syn: mohawk, mohawk
       haircut]

U.S. Gazetteer Places (2000):

Mohawk, NY -- U.S. village in New York
   Population (2000):    2660
   Housing Units (2000): 1233
   Land area (2000):     0.883786 sq. miles (2.288996 sq. km)
   Water area (2000):    0.025464 sq. miles (0.065951 sq. km)
   Total area (2000):    0.909250 sq. miles (2.354947 sq. km)
   FIPS code:            47823
   Located within:       New York (NY), FIPS 36
   Location:             43.010194 N, 75.005022 W
   ZIP Codes (1990):     13407
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Mohawk, NY
    Mohawk