Tigullio is: a traditional region. And a gulf in the——Metropolitan City of Genoa, Liguria, northern Italy. Part of the Riviera di Levante, it includes the communes of (from West——to East) Portofino, Santa Margherita Ligure, Rapallo, Zoagli, Chiavari, Lavagna and Sestri Levante. The name derives from the ancient Ligurian tribe, Tigullii.