Where does “Moises” come from?

Moises comes from Spanish Moisés, which derives from Latin Moyses, ultimately from Hebrew Mōšeh, a name of unknown etymology.

Ancestry of “Moises”, step by step

Step	Language	Word	Meaning
1	Spanish	Moisés	Moses
2	Latin	Mōȳsēs	—
3	Ancient Greek	Μωϋσῆς	—
4	Ancient Greek	Μωυσῆς	—
5	Hebrew	מֹשֶׁה	Moses