Over the past 110 years, 25 240 girls have been named Gwen. The name Gwen ranks 795th in the United States among the most common names for girls. For the first time more than ten times newborns were named Gwen in 1911. The peak of popularity of the name Gwen 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.