Amalfi is a small town in the province of Salerno, on the Gulf of Salerno. It lies at the mouth of a deep ravine, at the foot of Monte Cerreto (1,315 metres, 4,314 feet), surrounded by dramatic cliffs and coastal scenery. The town of Amalfi was the capital of the maritime republic known as the Duchy of Amalfi, an important trading power in the Mediterranean between 839 and around 1200.

In the 1920s and 1930s, Amalfi was a popular holiday destination for the British upper class and aristocracy.

Amalfi is the main town along this stretch of the coast and today is an important tourist destination together with other towns on the same coast, such as Positano and Ravello.  Amalfi is included in the UNESCO World Heritage Sites.

A patron saint of Amalfi is Saint Andrew, the Apostle, whose relics are kept here in the Amalfi Cathedral di Saint Andrea.

First mentioned in the 6th century, Amalfi soon became important as a maritime power, trading grain from its neighbours, salt from Sardinia and slaves from the interior, and even timber, in exchange for the gold dinars minted in Egypt and Syria, in order to buy the Byzantine silks that it resold in the West. Grain-bearing Amalfi traders enjoyed privileged positions in the Islamic ports.  The Amalfi tables provided a maritime code that was widely used by the Christian port cities. Merchants of Amalfi were using gold coins to purchase land in the 9th century, while most of Italy worked in a barter economy. In the 8th and 9th century, when Mediterranean trade revived it shared with Gaeta the Italian trade with the East, while Venice was in its infancy, and in 848 its fleet went to the assistance of Pope Leo IV against the Saracens. 

In medieval culture Amalfi was famous for its flourishing schools of law and mathematics. Flavio Gioia, traditionally considered the first to introduce the mariner's compass to Europe, is said to have been a native of Amalfi.

Amalfi occupied a high position in medieval architecture; its cathedral of Sant'Andrea (Saint Andrew, 11th century), the campanile, the convent of the Cappuccini, founded by the Amalfitan Cardinal Pietro Capuano, richly represent the artistic movement prevailing in Southern Italy at the time of the Normans, with its tendency to blend the Byzantine style with the forms and sharp lines of the northern architecture.

At the top of a staircase, Saint Andrew's Cathedral (Duomo) overlooks the Piazza Duomo, the heart of Amalfi. The cathedral dates back to the 11th century; its interior is adorned in the late Baroque style with a nave and two aisles divided by 20 columns. The façade of the cathedral is Byzantine in style and is adorned with various paintings of saints, including a large fresco of Saint Andrew.

The gold caisson ceiling has four large paintings by Andrea dell'Asta. They depict the flagellation of Saint Andrew, the miracle of Manna, the crucifixion of Saint Andrew and the Saint on the cross. From the left hand nave there is a flight of stairs which leads to the crypt. These stairs were built in 1203 for Cardinal Pietro Capuano, who, on 18 May 1208, brought Saint Andrew's remains to the cathedral from Constantinople.

The Amalfi coast is famed for its production of Limoncello liqueur and the area is a known cultivator of lemons. The correct name is "sfusato amalfitano", and they are typically long and at least double the size of other lemons, with a thick and wrinkled skin and a sweet and juicy flesh without many pips. It is common to see lemons growing in the terraced gardens along the entire Amalfi coast between February and October. Amalfi is also a known maker of a hand-made thick paper which is called "bambagina". It is exported to many European countries and to America and has been used throughout Italy for wedding invitations, visiting cards and elegant writing paper.