Over the past 110 years, 61 271 boys and 86 girls have been named Dillon. The name Dillon ranks 398th in the United States among the most common names for boys. For the first time more than ten times newborns were named Dillon in 1931. The peak of popularity of the name Dillon came in the 1990s and 2000s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.