Umberto Spigo (Patti, 4 June 1883 – Turin, 26 August 1954) was an Italian general during World War II.

[1] From 4 June 1934 he was head of office and later secretary of the Supreme Defense Commission; on 1 January 1937 he was promoted to brigadier general and then he was commander of the Artillery of the Army Corps of Rome from 1 October 1937 to 30 June 1939, when, after promotion to major general, he commanded the 21st Infantry Division Granatieri di Sardegna, also stationed in Rome.

[2][3][4][5][6] In August 1943 Spigo ordered a hasty court-martial for the garrison of Brač, composed of seventy soldiers, who after being encircled during a heavy partisan attack, had given up its weapons and abandoned the island.

The trial only lasted two hours, without hearing any witnesses nor waiting for the required report from the regimental commander; the garrison commander, Captain Leo Banzi, was judged guilty of helping the enemy and surrendering on the field, and another officer, twenty-three Alpini and three Carabinieri were judged guilty of "disbandment during combat" and sentenced to death by firing squad.

Ten years later, the sentence would be overturned by the territorial military court of Bari, which found that the Brač garrison had resisted the partisan attack to the maximum possible extent.