Gelbaum

Gelbaum is a surname. It is of Ashkenazi Jewish origin and is likely derived from the German words "gelb" (yellow) and "baum" (tree). The name may have been adopted as an ornamental name or descriptive of a physical feature near where the family lived, such as a tree with yellowish leaves. It is also possible that it was an occupational name, perhaps referring to someone who worked with yellow wood.

Notable people with the surname Gelbaum include:

• Bernard Gelbaum (1922-2021), an American mathematician known for his work in functional analysis and counterexamples in analysis.