Anna Friederike, Princess of Anhalt-Köthen (née Countess Anna Friederike of Promnitz-Pless; 30 May 1711 – 31 March 1750) was the third wife and consort of Augustus Louis, Prince of Anhalt-Köthen.

Countess Anna Friederike of Promnitz-Pless was born in Żary on 30 May 1711 to Erdmann II, Count of Promnitz and Princess Anna Maria of Saxe-Weissenfels.

[1] Her mother was a daughter of Johann Adolf I, Duke of Saxe-Weissenfels and Johanna Magdalena of Saxe-Altenburg.

[2] Her husband was previously married to her elder sister, Emilie of Promnitz-Pless, who had died earlier that year.

[3] They had two children:[4] Anna Friederike died on 31 March 1750 in Köthen.