Anna Maria of Brunswick-Calenberg-Göttingen (German: Anna Maria von Braunschweig-Calenberg-Göttingen; 23 April 1532 in Münden[1] – 20 March 1568 in Neuhausen[2] near Königsberg in Prussia) was a Duchess of Brunswick-Lüneberg by birth and by marriage Duchess of Prussia.

Anna Maria was the daughter of Duke Eric I of Brunswick-Calenberg (1470–1540) and Elizabeth of Brandenburg (1510–1558).

She married in 1550 Margrave Albert I of Brandenburg-Ansbach (1490–1568), who had been created the first Duke of Prussia in 1525; she was his second wife.

Albert died of the plague on 20 March 1568 at Tapiau Castle.

Anna Maria herself died 16 hours later from the plague too.