Dean Thomas (born 4 January 1973) is a motorcycle racer from Australia.
He won his home country's Supersport championship in 1995 after two other top 5 championship finishes, and was 4th in the Australian Superbike Championship series a year later; however, for 1997 he headed for the United Kingdom to race.
He came 4th in the country's Supersport series that year, the first of 4 successive top-6 championship finishes highlighted by a run of 11 front-row starts out of 12 in 2000, and a victory as a European Supersport wild card.
For 2001 he raced in Supersport World Championship, and struggled on largely unfamiliar circuits.
He was 16th overall, and tellingly took his best result of 6th at Phillip Island.