Antonio Riva (Chinese: 李安東; pinyin: Lǐ Āndōng; 8 April 1896 – 17 August 1951) was an Italian pilot and a World War I flying ace, credited with seven confirmed and seven unconfirmed aerial victories. In 1951, he was executed by firing squad under the newly established People's Republic of China for allegedly conspiring to assassinate Mao Zedong and other Communist leaders.

Antonio Riva was born in Shanghai, China on 8 April 1896 from a family of wealthy merchants from Gorgonzola, Achille Riva and Teresa Barbaran Capra; the couple moved to China in 1880 to export silk in Italy.^[1] Being of Italian heritage, he returned to Italy as World War I engulfed Europe. He volunteered as a reserve officer on 31 December 1914, before Italy entered the war. On 11 July 1915, he was commissioned a Sottotenente in the Italian Army's 70th Infantry Regiment. On 12 November 1915, he was wounded, not returning to duty until 16 March 1916. He was transferred to the 201st Infantry Regiment on 15 June 1916; on 30 June he was once again wounded in action. He returned to the front with the 44th Infantry Regiment on 22 August 1916. The next month, he went on leave; upon his return, he found himself bucked to the 49th Infantry Regiment. However, on 25 September 1916, he was accepted for pilot's training at San Giusto.^[2]

Riva became a Tenente (Lieutenant) while in aviation training; his promotion was effective 25 February 1917. He completed his training in April 1917, while stationed in Foggia. His first assignment was to a reconnaissance two-seater unit, 29a Squadriglia. After just 12 sorties with them, he undertook fighter conversion training on Nieuports in June 1917. In July, he underwent gunnery school at San Giusto. On 19 July, he was posted to a fighter squadron, 73a Squadriglia. He transferred out to 71a Squadriglia at the end of July.^[2]

Riva began his successes while flying a Nieuport 11 with this fighter squadron when he shared a victory with Antonio Amantea and another Italian pilot. The trio shot down Austro-Hungarian ace Julius Kowalczik in his Albatros D.III on 24 August 1917. Riva was promoted to Capitano on 31 October 1917. He switched over to command 78a Squadriglia on 12 November 1917 and changed mounts to a Hanriot HD.1. His next successes came on 26 December 1917, when he shot down a DFW reconnaissance plane solo, followed by a second win over another DFW, shared with Silvio Scaroni and three British pilots. A month later, on 27 January 1918, Riva teamed with Guglielmo Fornagiari for a fourth victory. On 15 June 1918, Riva became an ace. He and Amedeo Mecozzi teamed to down a Hansa-Brandenburg C.I. After a string of five unconfirmed claims, he would down two more planes in 1918, to bring his total to seven; he had an equal number of unconfirmed claims.^[3] Riva was assigned on 10 September 1918 as commanding officer to form a new squadron, 90a Squadriglia, equipped with a new fighter aircraft, the SVA 5. During this assignment, he continued to fly, and post his victory claims with, 78a Squadriglia. Antonio Riva ended World War I having been awarded the Silver Medal for Military Valor and the Knight's Cross of the Military Order of Savoy.^[2]

Confirmed victories are numbered and listed chronologically. Unconfirmed victories are denoted by "u/c" and may or may not be listed by date.

On 1 February 1919, the Bongiovanni commission review of the aerial victories of the Italian Army's pilots confirmed seven of Antonio Riva's aerial victory claims.^[4] In 1920, Riva was stationed in China, placed in charge of the Chinese stopovers for a Rome to Tokyo flight. He was discharged in January 1921.^[2]

Little is known of the next couple of decades, except that Riva remained in the Reserves of the Regia Aeronautica as late as February 1935.^[2]