Weinbaum is a Germanic surname. Notable people with the name include:
Batya Weinbaum (born 1952), American poet, feminist, artist, editor, and professor Sheldon Weinbaum (born 1937), American biomedical engineer Stanley G. Weinbaum (1902–1935), American science fiction writer
Other uses Weinbaum (crater), impact crater in the Mare Australe quadrangle of Mars