# 民法 / Civil Code — 第八百十六条 (Article 816) - 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: 第八百十六条 (Article 816)（離縁による復氏等） — address `art-816` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-816 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-816 - 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. --- ### 第八百十六条（離縁による復氏等） — (Reversion of the Surname upon Dissolution of the Adoptive Relationship) caption: Ministry of Justice translation — Japanese Law Translation Database System art-816 · https://japanlaw.org/ja/civil-code/art-816 · https://japanlaw.org/l/129AC0000000089/art-816 **第一項** 養子は、離縁によって縁組前の氏に復する。ただし、配偶者とともに養子をした養親の一方のみと離縁をした場合は、この限りでない。 art-816/par-1 · https://japanlaw.org/ja/civil-code/art-816/par-1 · https://japanlaw.org/l/129AC0000000089/art-816/par-1 An adopted child reverts to the surname used before the adoption upon dissolution of the adoptive relationship; provided, however, that this does not apply in the event of a dissolution of the adoptive relationship between the adopted child and only one of the adoptive parents that adopted that child together with the spouse. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 縁組の日から七年を経過した後に前項の規定により縁組前の氏に復した者は、離縁の日から三箇月以内に戸籍法の定めるところにより届け出ることによって、離縁の際に称していた氏を称することができる。 art-816/par-2 · https://japanlaw.org/ja/civil-code/art-816/par-2 · https://japanlaw.org/l/129AC0000000089/art-816/par-2 A person who has reverted to the surname used before adoption pursuant to the provisions of the preceding paragraph and who has done so after seven years have passed since the date of the adoption may take the surname used at the time of the dissolution of the adoptive relationship by filing a registration pursuant to the provisions of the Family Register Act within three months of the date of its dissolution. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-816/par-2: 前項 → 民法 第八百十六条第一項 (Article 816, paragraph (1)), art-816/par-1 — https://japanlaw.org/ja/civil-code/art-816/par-1 · https://japanlaw.org/l/129AC0000000089/art-816/par-1 ## Cited by 6 provisions cite this one. No official source publishes this direction. - 戸籍法 第十九条第三項 — https://japanlaw.org/ja/family-register-act/art-19/par-3 · https://japanlaw.org/l/322AC0000000224/art-19/par-3 - 戸籍法 第六十九条の二第一項 — https://japanlaw.org/ja/family-register-act/art-69-2/par-1 · https://japanlaw.org/l/322AC0000000224/art-69-2/par-1 - 戸籍法 第七十三条の二第一項 — https://japanlaw.org/ja/family-register-act/art-73-2/par-1 · https://japanlaw.org/l/322AC0000000224/art-73-2/par-1 - 民法 第八百八条第二項（婚姻の取消し等の規定の準用） — https://japanlaw.org/ja/civil-code/art-808/par-2 · https://japanlaw.org/l/129AC0000000089/art-808/par-2 - 民法 第八百十六条第二項（離縁による復氏等） — https://japanlaw.org/ja/civil-code/art-816/par-2 · https://japanlaw.org/l/129AC0000000089/art-816/par-2 - 民法 附則第四条第一項（離縁等の場合の氏に関する経過措置） — https://japanlaw.org/ja/civil-code/suppl-3621-101/art-4/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-3621-101/art-4/par-1 --- ## 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 - This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11