Over the past 110 years, 62 girls and 260 519 boys have been named Allen. The name Allen ranks 9880th in the United States among the most common names for girls. For the first time more than ten times newborns were named Allen in 1914. The peak of popularity of the name Allen came in the 1920s and 1970s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.