Meaning and Name Origin
Junior \j(u)-nior\ as a boys' 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 prominent first name for males (#532 out of 1220, Top 44%) and also a very prominent last name for both adults and children (#12396 out of 88799, Top 14%). (2000 U.S. Census)
Presented below is the baby name popularity of Junior for boys. Junior was first listed in 1890-1899 and reached its peak rank of #146 in the U.S. during the years 1920-1929, and is currently at #818. (2014 Birth Statistics)
A recommended similar baby name is Junio. This name tends to be less commonly used than Junior.