Group Captain John Alexander Kent, DFC & Bar, AFC (23 June 1914 – 7 October 1985), nicknamed "Kentski" (sometimes given as "Kentowski") by his Polish comrades, was a Canadian fighter ace flying in the Royal Air Force during the Second World War.

Considered one of the best young squadron leaders of the war, he went on to a distinguished postwar career before entering the aviation industry.

19 Squadron at RAF Duxford in February 1936, where he remained until October 1937 when he moved to the Royal Aircraft Establishment at Farnborough.

For his research work, during which he deliberately made over 300 airborne collisions with various types of barrage balloon, he mainly flew the first prototype of the Fairey P.4/34 K5099.

During the late stages of the fall of France, while on a low-level sortie with an armed Spitfire, he was attacked by a Messerschmitt Bf 109 that subsequently crashed during the encounter.

On 23 September, he destroyed a Bf 109 and damaged a Focke-Wulf Fw 58 reconnaissance aircraft while intercepting a raid over Dungeness.

Flight Lieutenant Kent has been responsible in a large measure for the fighting efficiency of his squadron and has materially contributed to its successes.

He has proved himself a born leader.The following day, he was posted to RAF Biggin Hill to take command of another highly successful group of pilots, No.

On 21 June, during an operation escorting Blenheim bombers against enemy positions at Saint-Omer, France, Kent shot down a Bf 109.

The published citation read: This officer has led his wing in an efficient and fearless manner on many operational sorties within the last two months.

Two months later, Kent was posted to the Middle East and took command of 17 Sector in Benghazi, Libya, where, on 25 January 1943, he damaged a Ju 88 during an engagement near the airfield at Benina.

Kent returned to flying duties as Chief Test Pilot at RAE Farnborough in 1948 and was involved until 1952 with many developments of military aviation, including the de Havilland Dh 108 "Swallow" and Avro 707.

In August 1952, he assumed command of the RAF Station at Odiham, a fighter base operating Gloster Meteors.