Chenicheri Vijay Nambiar (born August 1943) is a retired Indian diplomat and served as the UN Secretary General's Special Advisor on Myanmar.
He was Chef de Cabinet (Chief of Staff) under UN Secretary-General Ban Ki-moon from 1 January 2007 to February 2012.
Earlier as Ambassador of India, he served successively in Pakistan (2000-2001), China (1996-2000), Malaysia (1993-1996), and Afghanistan (1990-1992).
During the course of his professional career in the Indian Foreign Service, he had served in numerous bilateral and multilateral appointments in Beijing, Belgrade and New York during the 1970s and 1980s.
He was Joint Secretary (Director General) handling East Asia in 1988 during the period of the historic visit of Indian Prime Minister Rajiv Gandhi to China.