Daniël Wolf baron van Dopf (10 January 1650 – 15 April 1718) was a Dutch States Army officer and nobleman.

In 1675 he was appointed engineer-fortification master in the regiment Van Sijpesteyn; in 1679 he was already an ordinaris-engineer, one of the highest ranks of military engineer.

[5][6] In 1683, under the command of Prince Georg Friedrich of Waldeck, he joined the Imperial troops, who managed to lift the Siege of Vienna by the Turks .

[6] Between 1688 and 1690, Van Dopff had four new bastions built on the southwest side of Maastricht to better protect the city against a possible attack by the French during the Nine Years' War.

After Waldeck's death, Van Dopff remained in Maastricht and was even promoted to commander of the fortress in 1694 by the new governor John Adolphus, Duke of Schleswig-Holstein-Sonderburg-Plön.

From 1701 to 1702, just before the start of the War of the Spanish Succession, Fort Sint-Pieter was built on the northern flank of Sint-Pietersberg under the leadership of Van Dopff.

[6] Under Waldeck's tutelage Van Dopff built up a vast expertise in the field of military logistics, and he developed a great knowledge of the terrain in the Southern Netherlands, the new theater of operations in the Nine Years' War.

[9] On the eve of the Battle of Steenkerque in 1692 he was among the generals king William asked for advice on the strategy to follow in a council of war.

Like the late king William, Prince Eugene of Savoy and Marlborough profited from Van Dopff's expertise on logistics and military strategy.

Marlborough felt something for his plan, but told Slangenburg to convince Nassau-Ouwerkerk, the senior Dutch commander, and Van Dopff.

[11] As a Lieutenant General with the cavalry, Van Dopff had an important role during Battle of Ramillies in 1706, which ended in a great victory for the Allies.

For the rest he had acquired an accurate and perfect knowledge of the region where, under King William, the war had been fought; he was also perfectly familiar with the small details of a march, of a garrison, of a convoy, and of what was required for the maintenance of an army; and undoubtedly it was this, which won him the favour of that great king, who moreover, better than anyone else, was familiar with the abilities of each of those who served under him.

According to tradition, Van Dopff caught a bad cold on that occasion, because according to protocol no one was allowed to wear a headgear in the presence of the Russian monarch.