García Jiménez (Basque: Gartzia Semeno, Gascon: Gassia Semen, French: Garsias and Garsie Siguin) was the Duke of Gascony as leader of the Gascons from 816 to his death in 818.
García Jiménez, also known as Gartzia Semeno, Gassia Semen, or Garsias and Garsie Siguin, served as the Duke of Gascony from 816 until his passing in 818.