Algeria competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. This was the nation's twelfth consecutive appearance at the Summer Olympics, except for the 1976 Summer Olympics in Montreal because of the African boycott.

The Algerian Olympic Committee sent a total of 39 athletes to the Games, 21 men and 18 women, to compete in 12 sports. Women's volleyball was the only team event in which Algeria had its representation in these Olympic Games. There was only a single competitor in road cycling, rowing, sailing, shooting, swimming, and weightlifting. Boxing was the largest team by an individual-based sport, with a total of eight competitors.

The Algerian team included judoka Soraya Haddad, who previously won the bronze medal in Beijing, and sabre fencer Lea Moutoussamy, who set the nation's record as the youngest athlete, at age 14, in its Olympic history. Light heavyweight boxer and 2011 World Series champion Abdelhafid Benchabla was the nation's flag bearer at the opening ceremony.

Algeria left London with its first Olympic gold medal since 2000 from middle-distance runner Taoufik Makhloufi.

Algerian athletes have achieved qualifying standards in the following athletics events (up to a maximum of 3 athletes in each event at the 'A' Standard, and 1 at the 'B' Standard):

Algeria has qualified 2 boxers. Abdelhafid Benchabla has qualified for the Games by winning the light heavyweight 80–85 kg division at the World Series of Boxing finals.Mohamed Amine Ouadahi qualified from the 2011 World Amateur Boxing Championships. Algeria also qualified boxers from the African Continental Tournament.

...
Wikipedia