Mahajan is an Indian title and a surname. The term Mahajan is used to denote traders from several castes, including Brahmins, Khatri and Arora. It is also the name of a Vaishya caste.
The word "Mahajan" is an amalgam of two Sanskrit words: Maha meaning great, and Jan meaning people or individuals. As a generic title, the term Mahajan is used to denote people involved in money lending.
Notable people with the surname Mahajan include: