Paul Norris, originally from Stirling, was riding home when his motorbike collided with a taxi, the Phuket Gazette reported.
The 45-year-old, a presenter on Phuket Island Radio, had lived in the country for more than a decade.
The crash happened at an intersection in the Chalong district at about 2am yesterday.
A statement on Phuket Island Radio's Facebook page said: "It is with great sadness that we have to announce that Paul Norris (DJ Doris) was tragically the victim of a fatal road traffic accident in the early hours of Sunday morning.
"Phuket Island Radio extend our deepest sympathy and condolences to his family, loved ones and friends."
Thai police are investigating the circumstances of the crash.
Mr Norris was a partner and founding shareholder in the radio station and was a producer of the afternoon show which was popular with ex-pats, according to the Phuket Wan tourism news webpage.
A spokeswoman for the Foreign and Commonwealth Office said: "We are aware of the death of a British national, Paul Norris, on January 12 in Thailand.
"We are providing consular assistance to his family at this difficult time."