Prince Friedrich Wilhelm Nikolaus Albrecht of Prussia (8 May 1837 – 13 September 1906) was a Prussian general field marshal, Herrenmeister (Grand Master) of the Order of Saint John from 1883 until his death, and regent of the Duchy of Brunswick from 1885.

He was born in Berlin, Brandenburg, the son of Prince Albert of Prussia (1809–1872) and his wife Princess Marianne (1810–1883), daughter of King William I of the Netherlands. His father was a brother of King Frederick William IV of Prussia and of William I, German Emperor.

Albrecht entered the Prussian army in 1847, serving in the First Schleswig War and participating in the battles of Skalitz, Schweinschädel and Königgrätz in the Austro-Prussian War in 1866. In the Franco-Prussian War in 1870 he commanded a guard cavalry brigade at Gravelotte and Sedan. After the fall of the Second Empire, he was subordinated to Edwin von Manteuffel in the fighting around Bapaume and St. Quentin. In 1874 he became commander of the X Corps stationed in Hannover. In 1883 he succeeded his uncle Karl as Herrenmeister of the Order of Saint John (Bailiwick of Brandenburg).

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