Over the past 110 years, 86 girls and 164 300 boys have been named Jon. The name Jon ranks 9022th in the United States among the most common names for girls. For the first time more than ten times newborns were named Jon in 1944. The peak of popularity of the name Jon came in the 1960s and 1970s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.