The 4th Heavy Field Artillery Regiment (Italian: 4° Reggimento Artiglieria Pesante Campale) is an inactive artillery regiment of the Italian Army, which was based in Trento in Trentino and assigned to the 4th Alpine Army Corps.

During World War II the regiment formed the 4th and 40th army corps artillery groupings.

The 40th Army Corps Artillery Grouping fought in 1941 in the Greco-Italian War and in 1943 against the allies during the invasion of Sicily.

The 40th Army Corps Artillery Grouping, which had retreated from Sicily to Calabria in Southern Italy, and the regiment were disbanded by invading German forces after the announcement of the Armistice of Cassibile on 8 September 1943, while the 4th Army Corps Artillery Grouping remained active as a training unit until September 1944.

[1] This article is about the Royal Italian Army's 4th Heavy Field Artillery Regiment, which was a support unit assigned to a corps-level command.

In 1935-36 the regiment provided three officers and 98 enlisted to augment units deployed for the Second Italo-Ethiopian War.

The depot was disbanded by invading German forces after the announcement of the Armistice of Cassibile on 8 September 1943.

Afterwards the regiment consisted of the following units:[1][2] On 8 August 1979 the Recruits Training Company "Monte Calisio" was disbanded.

[1][2] On 4 September 1992 the 4th Heavy Field Artillery Group "Pusteria" was disbanded and on 30 September of the same year the flag of the 4th Heavy Field Artillery Regiment was returned to the Shrine of the Flags in the Vittoriano in Rome.