Over the past 110 years, 29 girls and 11 803 boys have been named Sonny. The name Sonny ranks 12151th in the United States among the most common names for girls. For the first time more than ten times newborns were named Sonny in 1976. The peak of popularity of the name Sonny came in the 1970s and 1980s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.