Section 170
Statutory text (Thai original)
การแสดงเจตนาซึ่งกระทำต่อผู้เยาว์หรือผู้ที่ศาลสั่งให้เป็นคนไร้ความสามารถหรือคนเสมือนไร้ความสามารถ จะยกขึ้นเป็นข้อต่อสู้ผู้รับการแสดงเจตนาไม่ได้ เว้นแต่ผู้แทนโดยชอบธรรม ผู้อนุบาล หรือผู้พิทักษ์ แล้วแต่กรณี ของผู้รับการแสดงเจตนานั้นได้รู้ด้วย หรือได้ให้ความยินยอมไว้ก่อนแล้วความในวรรคหนึ่งมิให้ใช้บังคับ ถ้าการแสดงเจตนานั้นเกี่ยวกับการที่กฎหมายบัญญัติให้ผู้เยาว์หรือคนเสมือนไร้ความสามารถกระทำได้เองโดยลำพัง
Verbatim from the Royal Gazette / Office of the Council of State
English translation
If the declaration of intention is made to a minor or a person adjudged incompetent or quasi- incompetent, it cannot be set up against him unless his legal representative, guardian or curator, as the case may be, has knowledge of it or has given prior consent to it. The provisions of paragraph one do not apply to the declaration of intention concerning any matter that the minor or the incompetent is required by law to make by himself.
This English translation is provided for reference only and has not yet been firm-verified. Always rely on the Thai original.
Firm annotation
Section 170 is part of Book 1 (General Principles) of the Thai Civil and Commercial Code. This entry is awaiting firm-authored commentary; the statutory text above is verbatim from the Office of the Council of State (OCS Krisdika) Thai source, with the English translation from the FAO/UN FAOLEX repository. Always rely on the Thai original for legal proceedings.
Cited in 3 Supreme Court decisions (1983 to 1994)
Selected citing decisions
- Decision 962/2537 (1994)
- Decision 3964/2534 (1991)
- Decision 3443/2526 (1983)
This list is selected automatically, weighted towards judgments that turn on this section rather than ones that merely recite it when passing sentence. It has not yet been reviewed by the firm.
Counted across the firm's corpus of 83,652 Supreme Court decisions, 1921 to 2026. The count is complete; the stated year range trims rare outliers so it describes where the citations actually sit. These figures are computed by us and are not official court statistics.
Related guides on ThaiLawOnline
Cite this section
-
Plain citation
Civil and Commercial Code, s. 170 (Thailand) -
Academic citation
Civil and Commercial Code (Thailand), s. 170. ThaiLawOnline, https://www.thailawonline.com/thai-civil-code/section-170/ (accessed 8 August 2026). -
Thai citation
ป.พ.พ. มาตรา 170 -
Permalink
https://www.thailawonline.com/thai-civil-code/section-170/ -
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<blockquote cite="https://www.thailawonline.com/thai-civil-code/section-170/"><p>If the declaration of intention is made to a minor or a person adjudged incompetent or quasi- incompetent, it cannot be set up against him unless his legal representative, guardian or curator, as the case may be, has knowledge of it or has given prior…</p><footer>Civil and Commercial Code, s. 170 (Thailand) — <a href="https://www.thailawonline.com/thai-civil-code/section-170/">ThaiLawOnline</a></footer></blockquote>
The Thai text is authoritative. The English is an unofficial translation by ThaiLawOnline, free to reuse with attribution.