What is a mother's maiden name in full?

Answer 1

That is her last name before she was married.

Answer 2

Your mother's maiden name is the family name your mother had (i.e. the name from her father) before she married your father and took his family name (i.e. your family name).

Answer 3

There is no such thing as a "maiden first name" because a woman does not change her first name when she marries.

Answer 4

It depends on their maiden name, of course. Sometimes "Née" is put before the maiden name, such as on official certificates, gravestones, or news articles.