Over the past 110 years, 172 boys and 551 041 girls have been named Janet. The name Janet ranks 4904th in the United States among the most common names for boys. For the first time more than ten times newborns were named Janet in 1932. The peak of popularity of the name Janet came in the 1930s and 1960s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.