Isaac Cronström was a Swedish general in the army of the Dutch Republic and a baron. In the Netherlands, he was most known for his leadership role during the Siege of Bergen op Zoom.

The siege of Bergen op Zoom took place during the Austrian War of Succession, when a French army, under the command of Count Löwendal and the overall direction of Marshal Maurice de Saxe, laid siege and captured the strategic Dutch border fortress of Bergen op Zoom on the border of Brabant and Zeeland in 1747. The fortress was defended by Dutch, Austrians, British, Hanoverians and Hessians that supported the Pragmatic Sanction.