The Carta de Logu was a legal code of the Judicate of Arborea, written in the Sardinian language and promulgated by the juighissa Eleanor of Arborea in 1392. It was in force in Sardinia until it was superseded by the code of King Charles Felix in April 1827.
The Carta was a work of great importance in Sardinian history and in European Juridic history as a whole. It was an organic, coherent, and systematic work of legislation encompassing the civil and penal law. The history of the drafting of the Carta is unknown, but the Carta itself provides an excellent glimpse into the ethnological and linguistic situation of late medieval Sardinia.