The Duchess of Södermanland is a title in the Swedish nobility, traditionally granted to female members of the royal family. It is associated with the province of Södermanland, located in eastern Sweden. The title is often held by the wife of the Crown Prince or the Crown Princess of Sweden. Currently, the title is held by Crown Princess Victoria, the eldest daughter of King Carl XVI Gustaf and Queen Silvia. As Duchess, she participates in various official duties and represents the royal family at events, promoting cultural and charitable initiatives within Södermanland and beyond.