Anzi is a town and comune in the province of Potenza, in the Southern Italian region of Basilicata.

Since 2008, an astronomical observatory and planetarium has been in service on the summit of Mount Siri, managed by the Teerum Valgemon Aesai voluntary association, based in Anzi.

By contacting the association, it is possible to visit the nativity scene and join in the exhibitions at the planetarium, as well as to participate in evenings of celestial observation.

[4] Anzi rises to 1,029 metres (3,376 ft) above sea level, in the central-northern part of the province.

It is the fourth highest comune in the region by altitude, after Pietrapertosa, Marsicovetere and Viggiano.