Rainbow
A girls’ name with no widely documented etymology — two syllables, given to 4 babies a year in England and Wales.
Rainbow by the numbers
In 2025, 4 babies in England and Wales were named Rainbow. In the US, 19 were, though that figure is from 2017, the most recent full year we hold.
It is used at about the same rate on both sides of the Atlantic.
Its American peak was 28 babies in 1980, making it a 1980s name.
What we can tell you about Rainbow
Not every name has a meaning to trace. Plenty are coined rather than inherited — invented outright, blended from two names, or respelled from an older one — and where we cannot find an etymology we can stand behind, we would rather say so than make one up. What follows comes from the birth records themselves.
Names about as common as Rainbow
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