Fao Rai is a tambon, or subdistrict, located within the Fao Rai District of Nong Khai Province in Thailand. It serves as a local administrative division within the northeastern region of the country.
As of 2026, the subdistrict had a recorded population of 6,377 people. It remains a residential and administrative area characterized by its status as part of the larger Fao Rai District infrastructure.