August Bischler (April 29, 1865 – May 26, 1957) was a Russian Empire-born ethnic Crimea German chemist who later emigrated to Switzerland. Together with Bernard Napieralski he discovered the Bischler-Napieralski reaction.
He received his Ph. D at the University of Zurich 1889 worked at the University of Zurich and from 1899 at the University of Basel. After becoming a Swiss citizen in 1925 he worked in the chemical industry in Geneve.
Bernard Napieralski was a Ph. D student of Bischler at the University of Zurich in 1893. Napieralski was born in Ostrowy, Poland, 1861.