Change of first name

You can ask

Adding a first name
Deleting a first name
Changing the order of your first names
Change your first name

The request to change one's first name must have a legitimate purpose.
Examples:

Your first name or the junction between your surname and first name is ridiculous or prejudicial to you
Other people (parents, brothers, sisters, employers, colleagues) call you by a name other than your first name.

The request to change a first name must not be contrary to the interests of the child or to the rights of other persons to have their family name protected..

More information on Service-Public.fr website

How do you go about it?

Go to the Registrar's Office to collect a file.

Contacts:

Town Hall - Civil Status Department
Place Auguste Génie - 60160 Montataire
Mondays from 1.30 p.m. to 5.30 p.m.
Tuesday to Friday, 8.30am to 12pm and 1.30pm to 5.30pm (5pm on Fridays)
Saturday from 9am to 11.45am
03 44 64 44 44
Contact the town hall

Civil status