Bein is a German/Yiddish surname. It may refer to one of the following persons.

Fallout of 7 Be in South Eastern Australia
10 Be in island-arc volcanoes and implications for subduction
Aerodynamic size association of 7 Be in ambient aerosols
How aggressive should we be in patients with stage iv colorectal cancer?
10 Be and 9 Be in mineral separates and whole rocks from volcanic arcs: Implications for sediment subduction
Evidence for muon-induced production of 10 Be in near-surface rocks from the Congo
A 30?000 yr record of erosion rates from cosmogenic 10 Be in Middle European river terraces
'The only place to go and be in the city': women talk about exercise, being outdoors, and the meanings of a large urban park
Can academic and clinical journals be in financial conflict of interest situations? The case of evidence-based incorporated
Estimation of stratospheric input to the Arctic troposphere: 7 Be and 10 Be in aerosols at Alert, Canada