It’s only 3 letters and one syllable so...
Famous people named Joy:
Comedian and talk show host Joy Behar; writer (and wife of C.S. Lewis) Joy Davidman; actress and model Joy Bryant; poet, musician, and author Joy Harjo; Joy Philbin, wife of talk show host Regis Philbin; singer and actress Joy Enriquez.
A common variant of this name is the Latin name Joyce.
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