Over the past 110 years, 36 296 boys and 5 girls have been named Junior. The name Junior ranks 536th in the United States among the most common names for boys. For the first time more than ten times newborns were named Junior in 1910. The peak of popularity of the name Junior came in the 1920s and 1930s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.