Where does “Micha” come from?

Micha (German) comes from Hebrew מִיכָה, from Hebrew מִיכַיְהוּ — who is like Yahweh.

Ancestry of “Micha”, step by step

Step	Language	Word	Meaning
1	Hebrew	מִיכָה	—
2	Hebrew	מִיכַיְהוּ	who is like Yahweh

Micha — Etymology, Origin & Word History | Etymology Explorer