The Serrano class was a series of six destroyers, built to a British design, which served with the Chilean Navy from 1928 to 1967.

In 1927 Chile ordered the Serrano class from John I. Thornycroft & Company in the United Kingdom at the cost of £230,000 for each ship to enhance the Chilean Navy's ability to patrol its extensive coastline.

[1][2] The destroyers were propelled by two shafts turned by Parsons-type geared turbines rated at 28,000 shp (20,880 kW).

In the first 25 years of service, the only changes was the removal of the mainmast and the addition of single-mounted 20 mm (0.8 in) Oerlikon cannon for AA defence.

In the mid-1950s, four of the class were converted to destroyer escorts and were given radar on a tripod mast and the AA defence was increased to four 20 mm cannon.

The light construction of the vessels made them inadequate for the rough waters off the southern coast of Chile, and battleship deployments to that region required that the Serrano class be left behind and older destroyers provide escort.