Hedwig of Mecklenburg-Güstrow

Hedwig of Mecklenburg-Güstrow (Hedwig Eleonore; 12 January 1666 – 9 August 1735) was a German noblewoman, a member of the House of Mecklenburg by birth and by marriage a Duchess of Saxe-Merseburg-Zörbig.

Born in Güstrow, she was the eighth of eleven children born from the marriage of Gustav Adolph, Duke of Mecklenburg-Güstrow and Magdalene Sibylle of Holstein-Gottorp. Of her ten older and younger siblings, eight survived to mature adulthood: Marie (by marriage a Duchess of Mecklenburg-Strelitz), Magdalene, Sophie (by marriage a Duchess of Württemberg-Oels), Christine (by marriage a Countess of Stolberg-Gedern), Charles, Hereditary Prince of Mecklenburg-Güstrow, Louise (by marriage a Queen of Denmark and Norway), Elisabeth (by marriage a Duchess of Saxe-Merseburg-Spremberg) and Augusta.