Karl Birnbaum
Karl Birnbaum or Carl Birnbaum is the name of the following people:
- Karl Birnbaum (1803-1865), German actor and opera singer, see Carl Birnbaum (actor)
- Karl Birnbaum (agronomist) (1829–1907), German agricultural scientist
- Karl Birnbaum (chemist) (1839–1887), German chemist
- Karl Birnbaum (physician) (1878–1950), German psychiatrist and neurologist