Tigullio is a traditional region and a gulf in the Metropolitan City of Genoa in the Liguria region on the north-west coast of Italy. Part of the Riviera di Levante, it includes the communes of Portofino, Santa Margherita Ligure, Rapallo, Zoagli, Chiavari, Lavagna and Sestri Levante. The name derives from the ancient Ligurian tribe, Tigullii.