The story of Nilsa
Nilsa is rare for girls in the United States, ranked #16,600 in 2025 with 5 babies given the name. It is currently rising compared with a decade ago.
Since 1946, 1,809 American babies have been named Nilsa. Its peak came in 1960, when 76 newborns received the name, the signature sound of the 1960s.
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 Nilsa stood among all girls' names in any year, or use the compare tool to plot it against other names.