John III of Egmont (or Egmond) (Hattem, 3 April 1438 – Egmond, 21 August 1516) was first Count of Egmont, Lord of Baer, Lathum, Hoogwoude, Aarstwoude, Purmerend, Purmerland and Ilpendam, and Stadtholder of Holland, Zeeland and West-Friesland.[1]