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Dual-national birth registration: Thai registry vs embassy

A child with one foreign parent must pass through two civil registries; the order you choose changes the timeline.

Register in the Thai system first, then with the other embassy

The child was born in Thailand

認証機関
Local district registrar, then the other country's embassy
目安期間
Variable with embassy appointment queues
注意点・差し戻しの原因
Presenting a Thai birth certificate without legalisation/translation stalls the embassy step

Register with a Thai mission abroad (child born overseas)

You need a Thai birth record and Thai nationality for a child born abroad

認証機関
Royal Thai Embassy/Consulate-General, then the registry in Thailand
目安期間
Variable — includes shipping documents back to Thailand
注意点・差し戻しの原因
Source documents not yet certified in the country of birth

Add to the house registration and apply for a Thai passport

The child needs a Thai ID number and a Thai passport

認証機関
District registrar and the Department of Consular Affairs
目安期間
Variable — follows on from registration
注意点・差し戻しの原因
Name spellings that diverge across the two systems are painful to correct later

備考: Timelines above are practical estimates from live casework and can change with each authority's policy; confirm with the receiving authority before you plan. If you would rather not test routes by trial and error, our advisers (15+ years of casework) can assess your case and handle the whole chain for you.

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