Does Thailand allow dual nationality?
Yes, Thai citizens are allowed to have dual nationality and own two passports. If you are born in Thailand and have at least one Thai parent, you automatically have Thai nationality and can apply for a Thai passport. However, if you are only half-Thai and were born and raised aboard, and do not have Thai nationality, you can still get a Thai passport, but must contact the District Office that your Thai parent is registered at and have your name added to the Thai House Registration list.
For more information contact the Phuket Passport Office Monday to Friday 8:30am to 4:30pm at 076-222 081.
Worrawan Pakamas, Phuket Passport Officer responsible for checking nationality and identity.