n-400 application for naturalization form for the department of homeland security U.S. citizenship and immigration services , Last Updated: Sun Jun 14, 2020
Wed Dec 31, 1969
if you are applying for citizenship, the first question on the n400 form is:
A. Your current Legal Name.
Family Name (Last Name)
Given Name (First Name)
Full Middle Name (If Applicable)
ok, lets look at each of this questions what they mean
there are some countries in the world that use 'PATERNAL' and 'MATERNAL' names. for example, in latin american they use the father's last name first and the mothers last name secon with a first name and a middle name. for example this is your name on your birth certificate:
Francisco Diego Hernandez Lopez
as you can see from our example, we have a total of four names, so which one is the first middle and last? here is the answer:
First Name = Francisco Middle Name = Diego Last Name = Hernandez Lopez
Yes, you must include both last names as your last name as it appears on your birth certificate.
the rule of thumb here, is to make sure your names match whats on your birth certificate from your home country. this will avoid any confusion in the future with the USCIS
if it doesn't match what is on your green card, the next question on the form will ask you to write your name exactly as it appears on your green card