Thidarat Chaisiri, 38, on Tuesday lodged a complaint with Chiang Mai Araya Group chairman Nathee Teerarojanapong, claiming that the United States national had lured her into having sex with him via a newspaper advertisement.
The woman claimed she saw the advertisement in a local newspaper in September last year, saying a 49-year-old foreign businessman living in Chiang Mai was looking for a "beautiful and well-educated woman" to marry.
Ms Thidarat said she responded to the advertisement and later met the man, who called himself James. She had sex with him several times, but the man recently ended the relationship.
Mr Nathee said the incident had tarnished the dignity of Thai women. He would seek justice for the victim from the US embassy and ask police to take action against "James", he added.