Male names:
Xixó is the Judeo–Catalan form of the Hebrew name Sasson, which means “happiness, joy.”
Sorry, this was the only verified name I could find anywhere! I love the letter X (though I’m not childishly obsessed with it like a certain eccentric who thought it would be cool to throw seventeen years of iconic branding and an established company name down the toilet), but it’s almost impossible to find names in any Judaic language that start with it. Feel free to let me know if there are any I can add.
Onomastics Outside the Box 
Galician Xaime, James, Xoán, John, and Xosé Joseph any good?
Happy A-to-Z. The letter X is a challenging one to create a post for . Xixo is an interesting name.
Stopping in from A-to-Z: https://brewingcoffeetwistingwordsbreakingpencils.ca/2024/04/27/breaking-the-spelling-rules─xtra-not-extra/
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