What does "full name" mean?

The complete name of a person, including first name, any middle names, and surname.

Full name

noun

noun ·Rare ·Advanced level

Noun

1
The complete name of a person, including first name, any middle names, and surname.
2
Used other than figuratively or idiomatically: see full, name.
"The full name of the United Kingdom is "the United Kingdom of Great Britain and Northern Ireland"."

"The full name of the United Kingdom is "the United Kingdom of Great Britain and Northern Ireland"."