Winterswijk (About this sound pronunciation ) is a municipality and a town in the eastern Netherlands.Winterswijk (Winterswiek, Wenters) is a town with a population of 28,932 in the Achterhoek which lies in the most eastern part of the province of Gelderland in the Netherlands. It was also known as Winethereswick, Winriswic or Wenterswic. Wic or the Anglo Saxon wich means the living place of a certain person. The person would likely have been called Wenether, Winitar or Winter.