Over the past 110 years, 288 518 girls and 35 boys have been named Peggy. The name Peggy ranks 120th in the United States among the most common names for girls. For the first time more than ten times newborns were named Peggy in 1910. The peak of popularity of the name Peggy came in the 1930s and 1940s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.