Willem Baudaert or Wilhelmus Baudartius (13 February 1565 in Deinze, Flanders, to 15 December 1640 Zutphen), born Willem Baudart, was a Dutch theologian. Baudartius College, a Christian secondary school in Zutphen, is named after him.
He was the maternal grandfather of Dutch New Netherland colonist and mayor of New York City Wilhelmus Beekman.[1]