Luise, Princess of Anhalt-Pless (née Princess Maria Dorothea Henriette Luise of Schleswig-Holstein-Sonderburg-Beck; 28 September 1783 – 24 November 1803) was a member of the Danish royal family and, as the first wife of Frederick Ferdinand, Prince of Anhalt-Pless, the princess consort of Anhalt-Pless.

Princess Maria Dorothea Henriette Luise of Schleswig-Holstein-Sonderburg-Beck was born in Lindenau on 28 September 1783 to Friedrich Karl Ludwig, Duke of Schleswig-Holstein-Sonderburg-Beck and Countess Friederike of Schlieben.

[1] Her mother was the daughter of Count Karl Leopold von Schlieben, who served as Minister of war in Prussia.

She died three months later, on 24 November 1803, at Schloss Pless.

Her husband later married Countess Julie of Brandenburg and became the Duke of Anhalt-Köthen.