The name Oshea means “same as Joshua”.
o-she'-a, o'-she-a (the Revised Version (British and American) "Hoshea" (Nu 13:8,16)): The original name of Joshua, the son of Nun, changed by Moses (Nu 13:16) from Hoshea (hoshea`, "help") to Joshua (yehoshua`, "help of Yahweh").
See JOSHUA.