Dorothea Augusta of Schleswig-Holstein-Gottorp

Dorothea Augusta of Schleswig-Holstein-Gottorp (12 May 1602 – 13 March 1682) was a German noblewoman from the House of (Schleswig-)Holstein-Gottorp, a cadet branch of the House of Oldenburg. She became the first Duchess of Schleswig-Holstein-Sonderburg-Plön as the wife of Duke Joachim Ernest (1595–1671).