The bystander effect, or bystander apathy, is a social psychological phenomenon that refers to cases in which individuals do not offer any means of help to a victim when other people are present.
Bystin is a protein that in humans is encoded by the BYSL gene.
Byszwałd [ˈbɨʂfau̯t] is a village in the administrative district of Gmina Lubawa, within Iława County, Warmian-Masurian Voivodeship, in northern Poland.
Bystrek [ˈbɨstrɛk] is a settlement in the administrative district of Gmina Ceków-Kolonia, within Kalisz County, Greater Poland Voivodeship, in west-central Poland.
Byssonectria is a genus of fungi in the Pyronemataceae family.
Bystrzyca [bɨsˈtʂɨt͡sa] is a village in the administrative district of Gmina Iwierzyce, within Ropczyce-Sędziszów County, Subcarpathian Voivodeship, in south-eastern Poland.
Bystřice nad Pernštejnem (Czech pronunciation: [ˈbɪstr̝̊ɪtsɛ ˈnat pɛrnʃtɛjnɛm]; German: Bistritz ob Pernstein) is a town in the Vysočina Region, Czech Republic.
Bystrzyca Dolna [bɨsˈtʂɨt͡sa ˈdɔlna] (German: Nieder Weistritz) is a village in the administrative district of Gmina Świdnica, within Świdnica County, Lower Silesian Voivodeship, in south-western Poland.
Bystrowiella is an extinct genus of bystrowianid reptiliomorph from upper Middle Triassic (Ladinian age) deposits of Kupferzell and Vellberg, northern Baden-Württemberg, Germany.
Bystander Revolution is an anti-bullying organization founded in 2014 by author and parent MacKenzie Bezos.