Mathys is a ♂ male name.
Mathys is a French form of Matthias. Matthias derived from the Greek name Matthaĩos / Μαθθαῖος, which derived from the Hebrew name Mattityahu / מַתִּתְיָהוּ.
Mathys means “gift of Yahweh” (from Hebrew “mattath/מַתָּת” = gift + “yah/יָה” = referring to the Hebrew God).