Borġ in-Nadur is an archaeological site located in open fields overlooking St George's Bay, near Birżebbuġa, Malta.

It is occupied by a Tarxien phase megalithic temple as well as the remains of a Bronze Age village which includes the earliest fortification in Malta.

The site is located close to various Bronze Age cart ruts and silos, a Roman villa at Ta' Kaċċatura, as well as Saint George Redoubt which was built thousands of years later in 1715–1716.

In the Bronze Age period, a flourishing village colonized the site of the former temple as well as the surrounding area, which had since been abandoned.

The wall was built facing inland, suggesting that the people living in the village were more concerned with attacks from the land than from the sea.

[4] Cart ruts and silos located in the area around Borġ in-Nadur are also believed to date back to the Bronze Age.

The first excavations took place two centuries later, when Annetto Caruana dug various trenches inside the temple complex and discovered the Bronze Age fortification.

Today, Borġ in-Nadur is not very well preserved and appears as a large site, only slightly visible on the ground.