Mahajan is an Indian surname. Notable people with this surname include:
Poonam Mahajan, Indian politician Ashwani Mahajan, Indian economist, National Co-Convener, Swadeshi Jagran Manch; Professor at PG DAV College Harsh Mahajan, Indian politician Mehr Chand Mahajan, former Chief Justice of India and former Prime Minister of Kashmir Pramod Mahajan, Indian politician (Maharashtra State) Rahul Mahajan, American blogger Rahul Mahajan, Indian reality TV personality Sumitra Mahajan, Indian politician, speaker of the 16th Lok Sabha Vijay Mahajan, Centennial Chair in Business at McCombs School of Business, University of Texas at Austin Vikram Chand Mahajan, Indian politician, Senior Advocate (Supreme Court of India) Girish Mahajan, Indian politician