Australian found with amnesia in Cambodia

An Australian man who went missing in Thailand more than a month ago has been found across the border, reportedly suffering from memory loss.

Financial consultant Nathan Hansford had last been seen leaving his home in the Bangkok suburb of Thungkru on January 31, prompting Thai police to launch an investigation last week.

Late on Sunday, the Department of Foreign Affairs and Trade (DFAT) confirmed Mr Hansford had been located in Cambodia.

"Consular officials in Cambodia are in contact with Mr Hansford's family," a DFAT spokeswoman told AAP.

A family statement released to Fairfax Media said Mr Hansford had been involved in a motor vehicle accident and was suffering from amnesia.

"It is time for us to focus on helping Nathan in his recovery," the statement said.