Choice of a child's surname by his 2 mothers
Verified 06 August 2026 - Public Service / (Prime Minister), Ministry of Justice
What last name can you give to your child when you are a couple of women who have AMP: titleContent (or LDC: titleContent) with gamete donation? We tell you what you need to know.
Please note
Specific pages present the rules for choosing the child's name for a heterosexual couple, and in the case of adoption plenary or simple.
The rules vary depending on whether it is 1er child of the following couple of women or children.
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1st child
A child whose parentage shall be established by early joint recognition may have any of the following names:
- Either the name of one of the couple's wives, or a single word of the double name of one of them
- Either their two names together, in the order chosen by them, and within the limit of a surname for each of them in case of double name.
Example :
Mother's name #1: Dupond Durand
Mother's name #2: Dupuis
Name of child: Dupond Durand or Dupuis or Dupond Dupuis or Durand Dupuis or Dupuis Dupond or Dupuis Durand or Dupond or Durand
The parentage is the family relationship between a child and his parents.
It is established by the effect of the law (designation of the mother in the birth certificate and presumption of paternity), by recognition, or by state ownership found by a act of notoriety.
- For a married heterosexual couple, the establishment of a child's parentage is automatic when the declaration of birth is made, except in exceptional cases. The husband is presumed to be the father of the child. We are talking about presumption of paternity. Maternal parentage is established by mentioning the mother's name in the birth certificate.
- For a unmarried heterosexual couple, maternal parentage is also established by mentioning the mother's name in the birth certificate. With regard to the father, the establishment of the filiation of a child is not automatic. The father must recognize the child.
- For a women who have used a third-party donor AMP, the establishment of a child's filiation with respect to the mother who has not given birth shall be by early joint recognition. In the case of a mother who has given birth, filiation is established by mentioning her name in the birth certificate.
Parentage may also be established by state ownership established by act of notoriety.
Subsequent children
If the 2 mothers appear on the birth certificate of their 1er child, the choice of the name made for this 1er child imposes itself on their next children.
Example :
Lea Ledru-Rollin and Fanny Dupont have chosen the name Dupont for their 1er child born on 1er October 2022.
Their 2e child born on january 4, 2024. This child must be called Dupont.
Women designated in the early joint recognition must choose the last name of their child at the latest at the time of declaration of birth.
The 2 mothers must make a joint statement mentioning the choice of surname of their 1er common child.
The joint statement is made on the cerfa form n°15286.
The 2 mothers sign every 2 the form on the same date.
The joint declaration of choice of surname shall be submitted to the registrar during the declaration of birth, with early joint recognition.
The registrar shall enter the surname in the birth certificate of the child provided that the parentage be established in respect of each of the two mothers.
If the 2 mothers do not make a joint declaration of choice of a surname, the child takes a double name, composed of their 2 names in alphabetical order.
When one of the 2 mothers has a double name, only her 1er name is used to compose the child's name.
Example :
If the name of mother No. 1 is Susini and the name of mother no. 2 is Delmas, the name of the child is Delmas Susini.
If the name of mother No. 1 is Susini and the name of mother no. 2 is Delmas Moreau, the name of the child is Delmas Susini.
Statement of disagreement
If the 2 mothers do not agree on the name of their child, one of the mothers must report it in writing à the registrar of his choice. The process must be done by the day of the declaration of birth. In practice, the mother has a statement of disagreement to the registrar before the birth of the child. You can download the circular of 29 may 2013 containing a model statement of disagreement on the name (annex 5).
The registrar checks the declaration, issues his visa and returns it to the child's mother. The mother must deliver this document the day of the declaration of birth to the registrar of the place of birth of the child.
Name of child
The registrar shall give the child a double name, composed of the 2 names of the mothers in alphabetical order. When one of the 2 mothers has a double name, the officer only retains the 1er to dial the child's name.
The name given to this child applies to the following children of the couple.
Example :
If the name of mother No. 1 is Susini and the name of mother no. 2 is Delmas, the name of the child is Delmas Susini.
If the name of mother No. 1 is Susini and the name of mother no. 2 is Delmas Moreau, the name of the child is Delmas Susini.
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