Olszów Dolny is a place, that after the Treaty of Saint-Germain belonged to Poland and was situated in the administrative region Bielsko.
Olszów Dolny was formerly part of the German Empire. In the German Empire, the place was called Nieder Ohlisch. The place is now called Olszów Dolny (Bielsko-Biała-Olsz. D.) and belongs to Poland.