Ajit Kumar Jain, born on 21 February 1954, is a retired Indian Administrative Service officer from the 1982 Maharashtra cadre. He holds an M.A. in Chemistry, a B.Sc. in Mathematics, and an M.A. in Political Science. Throughout his career, he served in various capacities including Principal Secretary, Senior Adviser, Additional Municipal Commissioner, Commissioner, District Collector, Managing Director, Officer on Special Duty to Minister, Chief Executive Officer, and Sub-Divisional Officer. His most recent position was Principal Secretary to the Chief Minister of Maharashtra in Mumbai.