Sophie, Duchess of Hohenberg (, ), born Sophie Maria Josephine Albina Countess Chotek of Chotkov and Wognin (1 March 1868 – 28 June 1914) was a Bohemian (Czech) aristocrat from the then-Kingdom of Bohemia, the morganatic wife of Archduke Franz Ferdinand of Austria. Their assassination sparked World War I. She was granted the title of Duchess of Hohenberg with the style of Highness in 1909.