birth name
Sign in to saveAlso known as personal name at birth, name at birth
name of the person given upon their birth
~2 min read
Encyclopedic overview
The birth certificate of Marilyn Monroe displays her birth name: Norma Jeane Mortenson.
A birth name is the name a person is given when they are born. The term may be applied to the surname, the given name, or the full name. Where births are officially registered, the full birth name entered onto a birth register or birth certificate may become the person's legal name by that fact alone.
Excerpted from Wikipedia’s “birth name” article, available under the CC BY-SA 4.0 licence.