Pauli Arbarei is a comune (municipality) in the Province of Medio Campidano on the Italian island of Sardinia, located about 50 kilometres (31 mi) northwest of Cagliari and about 11 kilometres (7 mi) north of Sanluri.

Pauli Arbarei borders the following municipalities: Las Plassas, Lunamatrona, Siddi, Tuili, Turri, Ussaramanna, Villamar. Economy is mostly based on agriculture and animal husbandry.