The standard Polish form of this name is Rachela, which is quite rare and, as far as I'm aware, has mostly been used by people with Jewish connections, Rachel is also used but even more sparingly. However, in January of this year, there were 16 women in Poland with the first name Rachael. 13 women had it as a middle name.
― Anonymous User 8/13/2021
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The name Rachael was given to 182 girls born in the US in 2015.