Meaning and name origin
Junior \j(u)-nior\ as a boy's name is pronounced JOON-yer. It is of Latin origin, and the meaning of Junior is "the younger one". Occasionally used as a given name, though more usually the abbreviation Jr is used with a full name when it is identical to a father's or grandfather's name.
Junior is a very popular first name for males (#532 out of 1220, Top 44%) and also a very popular surname or last name for all people (#12396 out of 88799, Top 14%) (2000 U.S. Census).
Displayed below is the baby name popularity of the name Junior for boys. Junior reached its highest rank of #146 in the U.S. in 1920-1929. (2014 statistics).
A suggested similar baby name is Junio. This name tends to be less commonly used than Junior.