M N Vijaykumar, born on April 5, 1955, is a retired Indian Administrative Service officer from the 1981 Karnataka cadre. He holds postgraduate and graduate degrees in Physics. Throughout his career, he has held numerous positions including Chairman, Managing Director, Principal Secretary, Regional Commissioner, Secretary, Special Secretary, Inspector General, Deputy Commissioner, Registrar, Administrator, Chief Secretary to Government, Joint Registrar, Deputy Secretary, and Assistant Commissioner. His most recent role was Officer on Special Duty to the Minister in Bangalore, Karnataka, from March 7, 2011, to April 27, 2015, within the Department of Personnel and Administrative Reforms.