In Polish, the word "Name" has several meanings.

For example:

Usual "Name" is translated to "Nazwa",
"Name" in the sense of "first name" is translated as "Imi?",
"Name" in the sense of "last name" is translated as "Nazwisko".

In other languages ??the situation may be similar.

There is a need to add context to the word "Name" for the user.

Solution is simple.
In my frontend I changed _('Name') into _x('Name','user name') in these files:
include/views/administration.users.edit.php:53
include/views/administration.users.list.php:56
users.php:45

Then I added the correct translation for this context.