| Unit Name: | 11th Army |
| Native Name: | 11ª Armata |
| Dates: | 9 November 1940 – September 1943 |
| Type: | Field army |
| Battles: | Greco-Italian War, Italian occupation of Greece |
The 11th Army (Italian: 11ª Armata) was a World War II field army of the Royal Italian Army. It was formed in November 1940 for service in the Greco-Italian War, and after the German invasion of Greece and the capitulation of that country in April 1941, assumed occupation duties in the Greek mainland. It remained on station in Greece until the Armistice of Cassibile on 8 September 1943, when it was forcibly disbanded by the Germans.
It was formed on 9 November 1940 out of the 11th Army Corps, then based in Italian-occupied Albania and engaged in operations against Greece alongside the 9th Army. Its engagement against the Greeks lasted until the fall of Greece in April 1941.
Thereafter, the Eleventh Army assumed duties of occupation in Greece, headquartered in Athens. Its command also doubled as the Higher Armed Forces Command Greece (Comando Superiore Forze Armate Grecia, abbrev. C.S. FF. AA. Grecia), with responsibility over mainland Greece (apart from the German and Bulgarian zones in northern Greece and the German zone in eastern and southern Attica), as well as the island of Euboea, the Northern Sporades and Skyros, and Kythera. The remainder of the Ionian Islands came under the Higher Armed Forces Command Albania (Ninth Army), while the Italian Dodecanese, the Italian-occupied Lasithi Prefecture on Crete and the bulk of the Cyclades came under the Higher Armed Forces Command of the Italian Islands of the Aegean at Rhodes. Apart from the units of the Eleventh Army, the Higher Armed Forces Command Greece also included the Air Force Command Greece (Comando Aeronautica Grecia), and the Western Greece Naval Military Command (Comando Militare Marittimo della Grecia Occidentale) at Patras.
In April 1943, an assessment of the combat readiness of the Eleventh Army's eight remaining divisions in terms of armament and means of transport found only one—the 11th Infantry Division Brennero—as "complete", with three more "effective" (over 70% of pack animals and 70% to 90% of vehicles from the table of organization and equipment) and the rest "incomplete" (with figures of completeness around 60%). In a similar evaluation of their completeness in personnel a fortnight later, only Brennero and the 33rd Infantry Division Acqui were classed as "complete", with the remainder as "effective". The situation remained largely the same during another review of their combat readiness in June.
It was forcibly disbanded by the German Army in September 1943, after the Italian capitulation.
During the first months of its occupation of Greece, Eleventh Army comprised the following units:
In spring 1943, Eleventh Army comprised the following units: