Seidman (plural Seidmans)
- A surname.
- According to the 2010 United States Census, Seidman is the 14316th most common surname in the United States, belonging to 2090 individuals. Seidman is most common among White (96.41%) individuals.
- Eidmans, Maidens, Mandies, Medians, demains, maenids, maidens, mandies, medians, medinas, meidans, sideman