Olszów Dolny is a place, that 1945 belonged to Poland and was situated in the administrative region Bielsko-Biała.
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.