Mayankote Kelath Narayanan (born 10 March 1934) was the 24th Governor of West Bengal, a state in Eastern India. He was formerly the country's third National Security Adviser (2005–2010), assuming the role after the demise of his predecessor Jyotindra Nath Dixit in January 2005. The Government of India awarded him the civilian honour of Padma Shri in 1992.