Answer
If you're a dual citizen, you should enter Thailand using the passport of the nationality that allows you the most favorable entry conditions, usually the one that offers the longest visa-free stay. - Always carry both passports with you while traveling, as you may need to show them at different times during your trip. - Be aware of any specific regulations that might apply to dual citizens, as you may be subject to different rules depending on which passport you present. Practical Pattaya note: Match the advice to your exact location, budget, transport and travel dates, and confirm time-sensitive details directly with the relevant provider or official source.
Updated 2026-05-24