The Leeds Warrior" previously held the same title in 2018 after defeating Lee Selby and made three successful defences of the belt before vacating it in 2021.
A devoted Leeds United fan, Warrington has fought the majority of his professional bouts in his hometown and his popularity within the city has been likened to Mancunian legend Ricky Hatton.
His record of seven knockouts from 30 wins is a deception of the power Warrington possesses, Carl Frampton found out the hard way in their 2018 showdown at the Manchester Arena.
Frampton, rocked several times during the bout, admitted after his defeat that he had underestimated his punching prowess.
Warrington - who had little amateur experience - is one of the real success stories of British boxing having not been given much of a chance by many to reach the pinnacle of the sport.
The 31-year-old has also held domestic and European titles between 2013 to 2017.
Back on the top
The greatest hits: Selby, Frampton and Galahad
In October 2017, Warrington overcame Dennis Ceylan at the Leeds First Direct Arena to become mandatory challenger to Selby's IBF world title.
Warrington got his wish and fought Selby on May 19, 2018 in front of 25,000 fans at Elland Road.
The Kaiser Chiefs performed some of their greatest hits prior to Warrington's ring walk and their No.1 tune 'I Predict a Riot' summed up the evening, on one of the hottest days of the year.
Using the Leeds faithful to his advantage, Warrington fought on the front-foot and bossed Selby during the early rounds and continued his momentum to secure a split-decision victory (116-112, 113-115, 115-113).
While the scorecards were close, it was a convincing victory for the Yorkshireman who had made his dream become a reality.
Warrington's first fight with Frank Warren was against Kiko Martinez in May 2017. Warrington fought former IBF super-bantamweight world champion at the First Direct Arena.
This was a step up in opponent for the Leeds man, but after a tough 12 rounds, he secured a comfortable points victory.
Warrington won it on the cards with it scored 116-112, 116-112 and 114-114 for a majority decision verdict.
After winning the world title, his first defence came against Frampton in 2018. This was a real test of Warrington's credentials at world level with the Irishman being a former two-division world champion and an elite level fighter.
Despite going into the contest as an underdog, Warrington delivered a sensational performance in what was seen by many as a Fight of the Year contender to retain his red-and-gold strap via unanimous decision.
His next defence was an all-Yorkshire clash against Sheffield's Kid Galahad. This one was a much closer fight between the two undefeated boxers. In an underwhelming spectacle, Warrington won the contest via split-decision.
Return to Matchroom
Following his Commonwealth title triumph in 2014, Warrington signed a five-fight deal under the Matchroom banner.
"Josh is the biggest ticket seller in the country right now, and we have an opportunity to do something very big in Leeds," Hearn said at the time.
However, in 2016, a new contract between both parties could not be agreed and Warrington turned to Hall of Fame promoter Warren. Together, they enjoyed huge success beginning with victory over Martinez, Selby, Frampton, Galahad and Takoucht.
In a shocking turn of events, Warrington and Hearn were reunited in 2020. Speaking to Planet Sport, Hearn revealed he had got his man back on an initial three-fight deal.
"I feel like I'm getting him back in his absolute prime, 29, No.1 featherweight in the division, fanbase better than ever, fresher than ever as a fighter and I'm excited about what's ahead."
"Three fights initially [with Warrington]. I expect him to end his career with us, there's a lot more than three fights but I've never been one to do three fights, five-year deals.
"When I've got a relationship with someone like Tony Bellew and Kell Brook, they were fight-by-fight not because you worry about the future but you got that relationship where you trust them."
Warrington's next three fights will take place on Sky Sports in the UK and DAZN in America, Canada and Spain.
Affiliation with Leeds
Warrington has long been affiliated with Leeds United and is not shy about speaking up on his pride for the club. He is among several famous faces to support the soccer club alongside Russell Crowe and Game of Thrones' Nikolaj Coster-Waldau.
"The Leeds Warrior" also featured on Leeds United's 'Take Us Home' docuseries on Amazon Prime.
The second episode of series one - titled Fighting Spirit - shows behind-the-scenes footage from the night Warrington defended his world title against Carl Frampton.
Speaking to Planet Sport in February 2020, Warrington backed Leeds to return to soccer's richest league and he was proved right. On September 17, 2020, Amazon released a two-part special of Take Us Home: Leeds United.
This looked at their 2019/20 EFL Championship promotion back to the Premier League - England's top-flight division. Warrington also featured in the opening episode.
O'Hagan first introduced Josh to boxing, and he has trained him throughout his career. Warrington was advised as an amateur to ditch his Dad as his trainer to fulfil his potential.
He ignored these naysayers, and together they have defied all expectations placed on them and became one of the most profitable father-son partnerships in world boxing.
Josh is married to his wife Natasha, and together they have two twin girls. At secondary school, Warrington struggled and would eventually drop out of John Smeaton Academy without getting any GCSE grades.
Upon advice from his father, he resat those exams and passed so he could go onto further education. He later went onto study Dental Technology at the University of Leeds and graduated in 2013.