Arnau Cadell was a Catalan sculptor of the 12th-13th centuries. Together with his workshop, he was responsible of the capitals in the cloister of the monastery of Sant Cugat, begun in 1190, and the Cathedral of Girona.
Cadell is the first Catalan artist to be known by name. A testament by him, dating to 1221 and signed in Girona, has been preserved, in which he donates his assets to the monastery of Sant Cugat and the Cathedral of Girona. In the cloister of the former is a self-portrait and an inscription by Cadell.