A common misunderstanding is that a father’s name on a birth certificate is sufficient to establish paternal rights in Thailand, but this is incorrect. In Thailand, although a man may be the biological father of the child in question and established a relationship with his child, but without having met the necessary legal requirements, may lack the legal rights to his child.
In Thailand,fathers rights are created either by marriage to the mother or through court action.
Foreign parents in Thailand will usually seek to establish the citizenship of their Thai born children through their embassy in Thailand. Although establishing paternity (or maternity) is normally a fundamental issue with regard to citizenship, establishing paternity under Thai law is not necessarily needed to gain legal paternity under foreign law.
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