Mario Ajmone Cat (Salerno, 5 February 1894 – Rome, 20 March 1952) was an Italian Air Force general during World War II.

In March 1915 he requested to attend the aircraft observer course held at the School of Nettuno, obtaining the brevet on May 23, 1915, the day before Italy's entry into World War I.

In the same month he became commander of the 7th Night Bombardment Wing, holding this position until October 15, 1932, the day when he assumed the functions of deputy Chief of Staff of the 3rd Territorial Air Zone (ZAT) based in Rome-Centocelle.

[9][10][11] He participated in the Rome-London-Berlin-Rome, in Italo Balbo’s Eastern Mediterranean Seaplane Cruise (June 1929), and in the Day of Wing, an air show held on 27 May 1932.

After the Armistice of Cassibile he was ordered by the Chief of Staff of the Air Force Ministry to dissolve his command, which he did by destroying all personnel lists and secret documents.

[15][16][17] After the liberation of the capital, on 13 November 1944, he was subjected to an "epuration" procedure but acquitted of all charges, and on 13 December 1944 he was appointed Chief of Staff of the Air Force, a post he held even after the end of the war and the establishment of the Italian Republic, until 5 February 1951.

[18][19][20][21] He was married to Countess Carla Angela Durini of Monza, the first woman to cross equatorial Africa on mechanized vehicles (from the Red Sea to Lobito) in 1930–1931.