Abraham Pietersen van Deursen (before November 11, 1607 – c. 1670), aka Abraham Pietersen van Deusen, was an immigrant from Holland who settled in New Amsterdam and become one of the Council of 12 that was the first representative democracy in the Dutch colony. The Van Deursen, Van Deusen, Van Duser, Van Duzer, Van Duzor, Van Duzee, and Van Dusen families of the United States and Canada are all descended from Abraham Pietersen van Deusen, a miller and a native originating from Haarlem in the Netherlands.