The siege of Giarabub in Libya, was an engagement between Commonwealth and Italian forces, during the Western Desert Campaign of the Second World War. In the aftermath of Operazione E, the invasion of Egypt by the Italian 10th Army (9–16 September 1940), Operation Compass (9–16 December) by the Western Desert Force (WDF), the Battle of Sidi Barrani and the pursuit of the 10th Army into Cyrenaica (16 December 1940 – 9 February 1941) the fortified Italian position at the Al Jaghbub Oasis was besieged by parts of the 6th Australian Division.

Jaghbub is a remote desert village in the Al Jaghbub Oasis in the eastern Libyan Desert. It is actually closer to the Egyptian town of Siwa than to any Libyan town of note. The oasis is located in Butnan District and was the administrative seat of the Jaghbub Basic People's Congress. The town remains highly obscure, in spite of the substantial colonial history the city holds. The town was the birthplace of Idris of Libya on 12 March 1890.