# 民法 / Civil Code — 第七百七十四条 (Article 774) - Law: 民法 (Civil Code), 明治二十九年法律第八十九号 - English title "Civil Code": Ministry of Justice translation - Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say. - Provision: 第七百七十四条 (Article 774)（嫡出の否認） — address `art-774` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-774 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-774 - Every provision below carries its address and both URLs on the line under it. - Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below. Only the Japanese as published by the government has legal effect; the text below is a copy of it. Every English rendering below is a translation and says which kind: the Ministry of Justice's translation, or this site's machine translation, whose model and date the Sources list names. They are never merged and never substituted for one another. --- ### 第七百七十四条（嫡出の否認） — (Rebutting the Presumption of Child in Wedlock) caption: Ministry of Justice translation — Japanese Law Translation Database System art-774 · https://japanlaw.org/en/civil-code/art-774 · https://japanlaw.org/l/129AC0000000089/art-774 **第一項** 第七百七十二条の規定により子の父が定められる場合において、父又は子は、子が嫡出であることを否認することができる。 art-774/par-1 · https://japanlaw.org/en/civil-code/art-774/par-1 · https://japanlaw.org/l/129AC0000000089/art-774/par-1 In a case where the father of a child is determined pursuant to the provisions of Article 772, the father or the child may rebut the presumption of the child in wedlock. machine translation, not official **第二項** 前項の規定による子の否認権は、親権を行う母、親権を行う養親又は未成年後見人が、子のために行使することができる。 art-774/par-2 · https://japanlaw.org/en/civil-code/art-774/par-2 · https://japanlaw.org/l/129AC0000000089/art-774/par-2 The child's right to rebut the presumption under the preceding paragraph may be exercised on behalf of the child by the mother exercising parental authority, the adoptive parent exercising parental authority, or the guardian of a minor. machine translation, not official **第三項** 第一項に規定する場合において、母は、子が嫡出であることを否認することができる。ただし、その否認権の行使が子の利益を害することが明らかなときは、この限りでない。 art-774/par-3 · https://japanlaw.org/en/civil-code/art-774/par-3 · https://japanlaw.org/l/129AC0000000089/art-774/par-3 In the case prescribed in paragraph (1), the mother may rebut the presumption of the child in wedlock; provided, however, that this does not apply if it is clear that the exercise of the right to rebut the presumption would harm the interests of the child. machine translation, not official **第四項** 第七百七十二条第三項の規定により子の父が定められる場合において、子の懐胎の時から出生の時までの間に母と婚姻していた者であって、子の父以外のもの（以下「前夫」という。）は、子が嫡出であることを否認することができる。ただし、その否認権の行使が子の利益を害することが明らかなときは、この限りでない。 art-774/par-4 · https://japanlaw.org/en/civil-code/art-774/par-4 · https://japanlaw.org/l/129AC0000000089/art-774/par-4 In a case where the father of a child is determined pursuant to the provisions of Article 772, paragraph (3), a person other than the father of the child who was married to the mother between the time of the child's conception and the time of the child's birth (hereinafter referred to as the "former husband") may rebut the presumption of the child in wedlock; provided, however, that this does not apply if it is clear that the exercise of the right to rebut the presumption would harm the interests of the child. machine translation, not official **第五項** 前項の規定による否認権を行使し、第七百七十二条第四項の規定により読み替えられた同条第三項の規定により新たに子の父と定められた者は、第一項の規定にかかわらず、子が自らの嫡出であることを否認することができない。 art-774/par-5 · https://japanlaw.org/en/civil-code/art-774/par-5 · https://japanlaw.org/l/129AC0000000089/art-774/par-5 A person who has exercised the right to rebut the presumption under the preceding paragraph and has newly been determined to be the father of the child pursuant to the provisions of Article 772, paragraph (3) as replaced pursuant to the provisions of paragraph (4) of that Article may not, notwithstanding the provisions of paragraph (1), rebut the presumption that the child is his child in wedlock. machine translation, not official --- ## Cites - art-774/par-1: 第七百七十二条 → 民法 第七百七十二条 (Article 772), art-772 — https://japanlaw.org/en/civil-code/art-772 · https://japanlaw.org/l/129AC0000000089/art-772 - art-774/par-2: 前項 → 民法 第七百七十四条第一項 (Article 774, paragraph (1)), art-774/par-1 — https://japanlaw.org/en/civil-code/art-774/par-1 · https://japanlaw.org/l/129AC0000000089/art-774/par-1 - art-774/par-3: 第一項 → 民法 第七百七十四条第一項 (Article 774, paragraph (1)), art-774/par-1 — https://japanlaw.org/en/civil-code/art-774/par-1 · https://japanlaw.org/l/129AC0000000089/art-774/par-1 - art-774/par-4: 第七百七十二条第三項 → 民法 第七百七十二条第三項 (Article 772, paragraph (3)), art-772/par-3 — https://japanlaw.org/en/civil-code/art-772/par-3 · https://japanlaw.org/l/129AC0000000089/art-772/par-3 - art-774/par-5: 前項 → 民法 第七百七十四条第四項 (Article 774, paragraph (4)), art-774/par-4 — https://japanlaw.org/en/civil-code/art-774/par-4 · https://japanlaw.org/l/129AC0000000089/art-774/par-4 - art-774/par-5: 第七百七十二条第四項 → 民法 第七百七十二条第四項 (Article 772, paragraph (4)), art-772/par-4 — https://japanlaw.org/en/civil-code/art-772/par-4 · https://japanlaw.org/l/129AC0000000089/art-772/par-4 - art-774/par-5: 同条第三項 → 民法 第七百七十二条第三項 (Article 772, paragraph (3)), art-772/par-3 — https://japanlaw.org/en/civil-code/art-772/par-3 · https://japanlaw.org/l/129AC0000000089/art-772/par-3 - art-774/par-5: 第一項 → 民法 第七百七十四条第一項 (Article 774, paragraph (1)), art-774/par-1 — https://japanlaw.org/en/civil-code/art-774/par-1 · https://japanlaw.org/l/129AC0000000089/art-774/par-1 ## Cited by 11 provisions cite this one. No official source publishes this direction. - 民法 第七百七十二条第四項（嫡出の推定） — https://japanlaw.org/en/civil-code/art-772/par-4 · https://japanlaw.org/l/129AC0000000089/art-772/par-4 - 民法 第七百七十四条第二項（嫡出の否認） — https://japanlaw.org/en/civil-code/art-774/par-2 · https://japanlaw.org/l/129AC0000000089/art-774/par-2 - 民法 第七百七十四条第三項（嫡出の否認） — https://japanlaw.org/en/civil-code/art-774/par-3 · https://japanlaw.org/l/129AC0000000089/art-774/par-3 - 民法 第七百七十四条第五項（嫡出の否認） — https://japanlaw.org/en/civil-code/art-774/par-5 · https://japanlaw.org/l/129AC0000000089/art-774/par-5 - 民法 第七百七十八条第一項 — https://japanlaw.org/en/civil-code/art-778/par-1 · https://japanlaw.org/l/129AC0000000089/art-778/par-1 - 民法 第七百七十八条の二第三項 — https://japanlaw.org/en/civil-code/art-778-2/par-3 · https://japanlaw.org/l/129AC0000000089/art-778-2/par-3 - 民法 第七百七十八条の三第一項（子の監護に要した費用の償還の制限） — https://japanlaw.org/en/civil-code/art-778-3/par-1 · https://japanlaw.org/l/129AC0000000089/art-778-3/par-1 - 民法 第七百七十八条の四第一項（相続の開始後に新たに子と推定された者の価額の支払請求権） — https://japanlaw.org/en/civil-code/art-778-4/par-1 · https://japanlaw.org/l/129AC0000000089/art-778-4/par-1 - 民法 附則第四条第一項（嫡出の否認及び嫡出の承認に関する経過措置） — https://japanlaw.org/en/civil-code/suppl-5041-102/art-4/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-4/par-1 - 民法 附則第四条第二項（嫡出の否認及び嫡出の承認に関する経過措置） — https://japanlaw.org/en/civil-code/suppl-5041-102/art-4/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-4/par-2 - 民法 附則第四条第三項（嫡出の否認及び嫡出の承認に関する経過措置） — https://japanlaw.org/en/civil-code/suppl-5041-102/art-4/par-3 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-4/par-3 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 民法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/129AC0000000089/20260624_508AC0000000045), retrieved 2026-10-11 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Civil Code — Ministry of Justice translation (part 2 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/4275/tb), retrieved 2026-10-11 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Civil Code — Ministry of Justice translation (part 1 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/4848/tb), retrieved 2026-10-11 - claude-sonnet-5-5 — Machine translation, batch civil-code-20261011T170941-002, translated 2026-10-12 - This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11