Look at Behind the Name:
DIEUDONNÉMeaning & HistoryMeans "given by God" in French
But at the same site you have to make two steps to get the meaning of Netanyahu.
Now that's not really telling you much so let's follow the Nethaniah link:NETANYAHUMeaning & HistoryHebrew form of NETHANIAH
So there we have it. Coincidence? Well they are two sides of the same coin.NETHANIAHGENDER: MasculineUSAGE: BiblicalOTHER SCRIPTS: נְתַנְיָהוּ (Ancient Hebrew)PRONOUNCED: neth-ə-NIE-ə (English) [key]Meaning & History