La Alberca is a municipality in the province of Salamanca in the autonomous community of Castilla y León, Spain. It is the capital of Sierra de Francia Comarca.

In 2003, the population of La Alberca was 1105, and the area 23.45 sq mi. Its altitude is 1,048 metres (3,438 ft) above sea level.

The Carmelite convent of Batuecas Desert, established by Thomas á Jesu is located five kilometres away, but the route there from the town is 12 km.

On August 15, the fiesta in honour of Our Lady of the Assumption is held, full of baroque splendour and colourful costumes and traditional folklore. The next day represents the loa, a popular comedy mixing religious and secular elements. These parties are declared of National Tourist Interest.

On September 8, the festival is held at the Peña de Francia and the pilgrimage to Old Majadas is celebrated the Saturday before Pentecost.

In La Alberca there is a tradition of having a pig loose in the streets that is fed by the neighbours. The pig, named "San Anton", is blessed on July 13, and released onto the town's streets. On January 17, the feast day of San Antonio (Saint Anthony), the pig is raffled off at the doors of the church. The funds are raised for the Brothers of St Antony.

In November he has taken up the Calbochada, this is to roast chestnuts in the town square while displaying the folklore of the area.

On February 2, we celebrate the feast of the candles with a procession of the Virgin of the Assumption.