Joseph "Jack" Doyle (31 August 1913 – 13 December 1978), known as "the Gorgeous Gael", was an Irish boxer, professional wrestler, actor, and a tenor. He was born Joseph Doyle but changed his name to Jack when starting his professional career. Considered a boxing prodigy in his youth, Doyle was a contender for the British Boxing Heavyweight Championship. However, his promising boxing career was destroyed by the emergence of his alcoholism, which he would continue to battle with for the rest of his life. In the early to mid-1930s he would attempt to launch both singing and acting careers, but was pulled back into the world of boxing only to be humiliated in a number of first-round knockouts. In the 1950s Doyle turned his hand to professional wrestling, playing up to his former "Gorgeous Gael" moniker with a character inspired by Gorgeous George.

By the 1950s alcoholism had completely overtaken his life and Doyle frequently found himself homeless. Doyle died from cirrhosis of the liver in 1978. Doyle's legacy is a contested one; while many 20th-century sources romanticised Doyle as a tragic hero, many 21st-century sources are highly critical of his relationships with women, which frequently featured domestic violence.

Doyle was born into a working-class family in Queenstown in County Cork, Ireland in 1913. Doyle's father was a sailor in the British navy, but his career was cut short by an injury and he was forced to take work variously as a farm labourer, on local coal boats, and as a quay labourer. Doyle himself left school at 12 years of age and like his father, mostly found work on Cobh's docks.

In Doyle's youth, he came into possession of the book How to Box by Jack Dempsey, the great world heavyweight champion from 1919 to 1926. Doyle would learn the techniques in the book to develop his own boxing skills, and Doyle is reputed to have knocked out a Donkey with a right-hand punch once during a practice session.

After being refused entry into the Irish Army for being underaged, Doyle joined the Irish Guards regiment of the British Army (based in Wales) in September 1930 at the age of 17. It was there that Doyle adopted the first name "Jack" in honour of Jack Dempsey. It was also whilst in Wales that Doyle excelled at boxing and became famed for his strong hooks that won him the British Army Championship. A record of 28 straight victories, 27 by knockout, brought him to the attention of boxing promoter Dan Sullivan. Sullivan "bought out" Doyle from the army for the sum of £28 in February 1932.

Doyle turned professional in 1932 and quickly notched up 10 consecutive victories, all inside two rounds, making him one of the most popular young boxers of the time.

I fouled Petersen in the first round. I admit that now freely. I was warned that I should be disqualified if I persisted. I did persist. I fouled him again in the second round more than once. I was ordered back to my corner, disqualified and disgraced. Why did I do it? Why did I ignore the warning I got? The plain honest fact of the matter is that I was ill, so ill I should never have been in the ring. I could have refused flatly to go in the ring at all. I put the public first. I did not want to disappoint the tens of thousands who were waiting for the ‘match of the century’, not just the huge crowd who watched, remember, but the peoples of Britain and Ireland. I knew I had only one chance. A knockout in the first two rounds. My strength would not last beyond that. At all costs, I must knock Petersen out in six minutes. I left my corner reckless and desperate, my mind obsessed by just one thought — I must hit and keep on hitting. In this way, I became fighting mad. I did not know what I was doing. I saw red. ‘Hit and keep on hitting’, drummed through my dazed mind and not until I had been forced back to my corner did I realise what I had done

In July 1933, at the age of 19, Doyle was scheduled for a title match for the British Heavyweight title against the reigning champion, Jack Petersen of Wales. By the time of the fight itself, Doyle was not in a condition to fight. Some sources suggested Doyle showed up drunk to the fight, while others suggest he was suffering from a sexually transmitted disease. In either case, a panicked Doyle seemed to come the conclusion he was overmatched in the fight and began repeatedly throwing low blows to his opponent. The referee called for a disqualification in the second round and the 70,000 in attendance for the fight at White City, London promptly began to riot, with supporters of Doyle storming the ring and tossing chairs before carrying Doyle shoulder-high out of the ring.