Jason O'Halloran (born 30 December 1987 in Wollongong) is an Australian motorcycle racer. He recently competed in the British Superbike Championship (BSB). He made his BSB debut in 2008 with the SMT Honda team and raced full-time in the series from 2009 through 2024. Over his BSB career, he achieved 28 wins and 75 podiums in 277 races. In 2024, he raced for FS-3 Racing Kawasaki but missed the final round due to a shoulder injury sustained at Donington Park. Following the 2024 season, O'Halloran transitioned to endurance racing with the YART Yamaha team.
O'Halloran's nickname is the O'Show, a name originally applied to 1980s American motocrosser Johnny O'Mara.
O'Halloran was the Australian Supersport champion in 2007.
In 2007, O'Halloran secured the Australian Supersport Championship title, marking a pivotal moment in his early career.
O'Halloran later transitioned to international competitions, including participation in the Supersport World Championship and the Moto2 World Championshi<nowiki/>p. His tenure in the British Superbike Championship has been particularly noteworthy, with multiple race victories and podium finishes.
As of 2024, following the disbandment of the McAMS Yamaha team, O'Halloran has joined the FS3 Kawasaki team, competing aboard a Kawasaki ZX-10RR in the BSB.
For 2026, O'Halloran will return to the British Superbike Championship with Honda Racing UK.
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() (Races in bold indicate pole position, races in italics indicate fastest lap)
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() (Races in bold indicate pole position; races in italics indicate fastest lap)