Livry-Gargan (French pronunciation: [livʁi ɡaʁgɑ̃] ^ⓘ) is a commune in the northeastern suburbs of Paris, France. It is located 15.6 km (9.7 mi) from the center of Paris.

The name Livry derives from the Latin Liberiacum meaning the 'estate of Liberius', a Gallo-Roman personal name. Gargan was added to the commune's name in 1912. The name comes from Xavier Gargan, who built a factory in the area in the 19th century.

During the Middle Ages, the lordship of Livry (seigneur de Livry) was held by members of the House of Garlande before passing to Pierre de Chambly, chamberlain of King Philip IV, in 1285.

On 20 May 1869, a part of the territory of Livry-Gargan was detached and merged with a part of the territory of Clichy-sous-Bois and a small part of the territory of Gagny to create the commune of Le Raincy.

The Hôtel de Ville was erected in a large park formerly known as the "Écu de France" in the early 20th century.

Livry-Gargan is not served by any station of the Paris Métro, RER, or suburban rail network. The closest station to Livry-Gargan is Sevran – Livry station on Paris RER line B. This station is located in the neighboring commune of Sevran, 1.9 km (1.2 mi) from the town center of Livry-Gargan. Tram 4 Gargan Station is very near to the village and in tram 4 direction Hopital de Montfermeil there are two more station "République Marx-Dormoy" and "Léon Blum". These two stations are inside the village Livry-Gargan.

Schools include:

Livry-Gargan is twinned with the communities of: