Beschermer (Protector) was a Dutch 56-gun fourth-rate ship of the line of the Admiralty of the Noorderkwartier (one of five provincial navies of the United Provinces of the Netherlands).

[1] In 1795 she became part of the Batavian Navy, following the French invasion of the Netherlands.

On 11 October 1797 Beschermer took part in the Battle of Camperdown under Captain Dooitze Eelkes Hinxt.

[2] On 30 August 1799 Beschermer, under Captain Eilbrach, was surrendered to the British during the Vlieter Incident.

Beschermer was lent to the East India Dock Company for use as a hulk at Blackwall in 1806 until she was sold for breaking up in September 1838.