Founded in 1912, Birra Ichnusa, or simply Ichnusa, is the name of a popular Sardinian-made beer, which is brewed in Assemini, a town near the Sardinian capital Cagliari. It is named after the Latinized ancient name Sardinia, Hyknusa.

Birra Ichnusa is a lager (4.7% ABV) with a hoppy taste.