Jacob van Wassenaer Obdam was a Dutch States Army officer from the prominent Van Wassenaer family who served in the Franco-Dutch War, Nine Years' War and War of the Spanish Succession. His extensive career made him eligible for the supreme command of the Dutch States Army in 1703, but his military career came to an abrupt end after he fled his army during the Battle of Ekeren and the position was given to Hendrik van Nassau-Ouwerkerk instead.