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Thailand

Document Apostille

Birth Certificate Apostille for Thailand

Korean birth certificates for use in Thailand require embassy legalization. The document must be authenticated by the Overseas Koreans Agency (OKA), then legalized by the Thai Embassy in Seoul, and accompanied by a certified Thai translation. Common uses include marriage registration at a Thai Amphur (district office), retirement and LTR visa applications, and civil registration in Thailand. Thailand has acceded to the Hague Apostille Convention, but it only enters into force on 2027-02-28; until then OKA authentication plus Thai Embassy legalization applies.

How to apostille a Korean birth certificate for Thailand

  1. 1Obtain a certified copy of the Korean birth certificate from the relevant Korean municipal office
  2. 2Submit to OKA for authentication (재외동포청 확인) — usually same day in person (up to 10 documents), 7–10 days by mail
  3. 3Submit the OKA-authenticated document to the Thai Embassy in Seoul for legalization
  4. 4Arrange a certified Thai translation
  5. 5Submit to the relevant Thai authority (Amphur, Thai consulate, or immigration office)

Requirements for Thailand

  • Korean birth certificate with official municipal seal
  • OKA authentication — apostille is not yet valid in Thailand
  • Thai Embassy in Seoul legalization
  • Certified Thai translation

What to look for in a specialist

Experience with OKA authentication → Thai Embassy legalization workflow
Access to certified Thai translators for civil documents
Knowledge of Amphur civil registration requirements

Frequently Asked Questions

Do I need an apostille or embassy legalization for my Korean birth certificate in Thailand?

Embassy legalization for now. Thailand has acceded to the Apostille Convention, but it only enters into force on 2027-02-28. Until then you need OKA authentication followed by Thai Embassy legalization in Seoul — not an apostille.

What Korean documents does a Thai Amphur require for marriage registration?

A Thai Amphur typically requires a legalized Korean birth certificate (기본증명서) and certificate of no impediment to marriage (혼인관계증명서), both with certified Thai translation.

Related legalization services for Thailand

Apostille ServiceCertified TranslationNotarization

Other documents for Thailand

Diploma Apostille for ThailandAcademic Transcript Apostille for ThailandMarriage Certificate Apostille for ThailandCriminal Background Check Apostille for ThailandPower of Attorney Apostille for ThailandCorporate Registration Apostille for ThailandFamily Register Apostille for Thailand

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