Over the past 110 years, 94 girls and 57 504 boys have been named Julio. The name Julio ranks 8778th in the United States among the most common names for girls. For the first time more than ten times newborns were named Julio in 1970. The peak of popularity of the name Julio came in the 1970s and 1980s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.