Princess Maria Anna Amalia of Courland (12 June 1653 – 16 June 1711) was Landgravine of Hesse-Kassel through her marriage to Charles I, Landgrave of Hesse-Kassel. She was the child of Jacob Kettler, Duke of Courland and Semigallia and Margravine Louise Charlotte of Brandenburg. Her eldest son was King Frederick I of Sweden. One of her daughters is the most recent common ancestor of all currently reigning monarchs in Europe.