Mayankote Kelath Narayanan (born 10 March 1934) is an Indian diplomat and former IPS officer.
He was National Security Adviser of India from 2005 to 2010, assuming the role after the demise of his predecessor Jyotindra Nath Dixit in January 2005.
Subsequently he served as Governor of West Bengal from 2010 to 2014.
The Government of India awarded him the civilian honour of Padma Shri in 1992.