Over the past 110 years, 21 girls and 96 895 boys have been named Arnold. The name Arnold ranks 13236th in the United States among the most common names for girls. For the first time more than ten times newborns were named Arnold in 1918. The peak of popularity of the name Arnold came in the 1910s and 1920s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.