The story of Gwynn
Gwynn is rare for girls in the United States, ranked #8,036 in 2025 with 13 babies given the name. It is currently declining compared with a decade ago.
Since 1916, 1,179 American babies have been named Gwynn, about 89% girls and 11% boys, making it a genuinely unisex name. Its peak came in 1954, when 36 newborns received the name, the signature sound of the 1950s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Gwynn stood among all girls' names in any year, or use the compare tool to plot it against other names.