Lamberto Visconti di Eldizio

Lamberto Visconti (died 1225) was a Pisan nobleman of the Visconti family and the first of his dynasty to rule in Sardinia. Elena, heiress of the giudicato of Gallura and last of the Lacon-Gunale, chose him as her husband despite Pope Innocent III, her overlord, having planned another match.

In 1209 he and his Pisan allies drove out Comita III of Torres, who had invaded Gallura. In 1215 he landed an army at Cagliari and left his brother Ubaldo to conquer the rest. After Elena died in 1218 he ruled Gallura alone. In 1220 he married Benedetta of Cagliari; he died in 1225 and his son Ubaldo II succeeded him.