Over the past 110 years, 94 529 boys and 44 girls have been named Karl. The name Karl ranks 294th in the United States among the most common names for boys. For the first time more than ten times newborns were named Karl in 1910. The peak of popularity of the name Karl came in the 1950s and 1960s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.