O’Leary was born and raised in Dublin, Ireland. As a youth growing up in Dublin’s but the minute he laced up his first pair oinner city, choices can be limited and often one can head down the wrong path. O’Leary never let distractions get in his way and chose the path of boxing and hasn’t looked back since racking up over 150+ wins as an Ameteur while only losing 9 bouts. O’Leary is a proud Dubliner and hopes to inspire the younger generation with his success in the world of boxing. He had tampered with football, motocross amongst some other traditional Irish sportsf gloves at the tender age of 7, he immediately fell in love. O’Leary was so eager to start trading leather, he even lied about his age in order to enter some local competitions. His coach eventually found out his real age and continued to train him as he knew he had a special talent in the gym. The pair are still together and share a close bond to this day. O’Leary has truly found his passion with boxing and lives by its principles day in and day out. He is a 9x national champion and represented Ireland at the multiple championship such European Championships. In 2019 after the performance OLeary had put in to not come out the winner, to medal at the Europeans Russia. Time to turn professional to chase he’s dream, by coming a multi weight world champion. He’s now training with the Queensbury Ibox gym Al Smith & Eddie lam on London. OLeary signed with all of famer promoter Frank Warren who has high hopes for him.