Georg Albrecht of Brandenburg-Bayreuth (Bayreuth, 20 March 1619 – Schretz, 27 September 1666), was a German prince and member of the House of Hohenzollern.

Georg Albrecht's older brother, Hereditary Margrave Erdmann August, died in 1651, four years before the death of their father.

But, because he was too young to reign, Georg Albrecht acted as regent for his nephew until 1664, when Christian Ernst assumed the full government of Bayreuth.

In Bayreuth on 10 December 1651, Georg Albrecht married firstly Marie Elisabeth (1628–1664), daughter of Philip, Duke of Schleswig-Holstein-Sonderburg-Glücksburg.

They had six children: In Colditz on 11 November 1665 (seventeen months after the death of his first wife), Georg Albrecht married secondly Sophie Marie of Solms-Baruth-Wildenfels, Dowager Countess of Schönburg-Lichtenstein.