Argentiera is a small town and a frazione (hamlet) in the comune of Sassari, in Sardinia, Italy.

It is located 43 km west from Sassari, in a narrow valley, on the coast of the Sardinian Sea.

[1] Argentiera is a former mining town, its name comes from the Latin argento, meaning silver.

It was reopened in the 19th century by "Società di Corr'e boi", a Belgian mining company.

Today the town is the home of a few small businesses who get most of their income from tourism.