The story of Rainbow
Rainbow is rare for girls in the United States, ranked #6,767 in 2025 with 17 babies given the name. It is currently rising compared with a decade ago.
Since 1971, 606 American babies have been named Rainbow. Its peak came in 1980, when 28 newborns received the name, the signature sound of the 1980s.
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 Rainbow stood among all girls' names in any year, or use the compare tool to plot it against other names.