Taditui Rangkau Zeliang is an Indian politician who is currently serving as the Deputy Chief Minister of Nagaland. He has served twice as the Chief Minister of Nagaland, from May 2014 to February 2017 and from July 2017 to March 2018. A leader of the Naga People's Front, T. R. Zeliang previously served as a Member of Parliament, representing Nagaland in the Rajya Sabha, the upper house of the Indian Parliament. He served as the Chairman of United Democratic Alliance (Nagaland) and was former leader of the NPF Legislature Party and former Leader of Opposition in Nagaland Legislative Assembly.He represents the Peren Assembly constituency in Nagaland Legislative Assembly since 2008.

Nagaland is a landlocked state in the north-eastern region of India. It is bordered by the Indian states of Arunachal Pradesh to the north, Assam to the west, Manipur to the south, and the Naga Self-Administered Zone of the Sagaing Region of Myanmar (Burma) to the east. Its capital city is Kohima and its largest city is the twin Chümoukedima–Dimapur. The state has an area of 16,579 square kilometres (6,401 sq mi) with a population of 1,980,602 as per the 2011 Census of India, making it one of the smallest states of India.