The 13th Artillery Regiment "Granatieri di Sardegna" (Italian: 13° Reggimento Artiglieria "Granatieri di Sardegna") is an inactive field artillery regiment of the Italian Army, which was based in Civitavecchia in Lazio.

However the flight of the Italian King Victor Emmanuel III made further resistance senseless and after handing their weapons over to civilian resistance fighters the division surrendered to the Germans, which disbanded the division and its units on 12 September.

[2] The regiment was reformed in 1947 and one year later assigned to the Infantry Division "Granatieri di Sardegna".

By the end of the same year the group was reorganized as 13th Self-propelled Field Artillery Regiment "Granatieri di Sardegna".

During the Second Italian War of Independence in 1859 the batteries fought in the Battle of Solferino, while during the Piedmontese invasion of Central and Southern Italy they participated in the Siege of Gaeta in 1860–61.

[1][2][4] During the Italo-Turkish War in 1911-12 the regiment provided two batteries, one train company, and three officers and 116 troops for other deployed units.

The following year the regiment fought in the sector of the Kreuzberg Pass and in the Val Costeana, before falling back to the Monte Grappa after the disastrous Battle of Caporetto.

[1][2] In 1926 the regiment was assigned to the 21st Territorial Division of Rome and consisted of a command, one group with 100/17 mod.

15 mountain guns was assigned to the 18th Artillery Regiment "Gran Sasso" for the duration of the Second Italo-Ethiopian War.

[2] From May 1941 until November 1942 the division was on anti-partisan duty in occupied Yugoslavia and then returned to Rome.

After the announcement of the Armistice of Cassibile on 8 September 1943 the division was tasked to defend Italy's capital from invading German forces.

The grenadiers of the Granatieri division, the lancers of the Regiment "Lancieri di Montebello" (8th) and thousands of civilians fought the Germans until 10 September, when the flight of King Victor Emmanuel III to Apulia made further resistance senseless.

Afterwards the regiment consisted of the following units:[2][3] On 1 November 1954 the two anti-tank groups were re-equipped with M36 tank destroyers.

On 31 August 1963 the regiment's detached I Group in Rome became a training unit assigned to the Artillery School in Bracciano.

The group moved from Rome to Bracciano, but remained assigned to the 13th Field Artillery Regiment for operational use.

To avoid confusion with the support units of the Infantry Division "Granatieri di Sardegna" the group was named for the Magliana neighborhood in Rome, where the units of the Granatieri di Sardegna division had battled German troops from 8 to 10 September 1943.

[5] On 12 November 1976 the President of the Italian Republic Giovanni Leone assigned with decree 846 the flag and traditions of the 13th Artillery Regiment "Granatieri di Sardegna" to the group.

On 19 August 1992 the group lost its autonomy and the next day entered the 13th Self-propelled Field Artillery Regiment "Granatieri di Sardegna".