Birnbaum may refer to:
Places
Austria Birnbaum (Lesachtal), a village in Lesachtal, Carinthia, Austria
Germany Birnbaum (Frankenwald), an unincorporated area in Kronach, Bavaria Birnbaum (Gummersbach), a district of Gummersbach, North Rhine-Westphalia
Poland Birnbaum an der Warthe, now Międzychód, Greater Poland Voivodeship Kreis Birnbaum, an administrative district of the Grand Duchy of Posen and, later, the Prussian province of Posen
Slovenia Hrušica (plateau) (German: ) Hrušica (settlement) (German: ), village in the municipality of Jesenice
Other uses Birnbaum (painting), by Gustav Klimt Birnbaum (surname)
See also Barenboim (surname) Bernbaum Berenbaum