Lebanon competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012.

For the first time in its Olympic history, Lebanon was represented by more female than male athletes.

[1] Three of its athletes were born in the United States: foil fencers and siblings Zain and Mona Shaito, and freestyle swimmer Katya Bachrouche.

Two other athletes had competed in Beijing, including sprinter Gretta Taslakian, who was at her third consecutive Olympics.

Asian Games silver medalist Andrea Paoli, who became the first Lebanese taekwondo jin to participate in the Olympics, was the nation's flag bearer at the opening ceremony.