The Tata Group (Hindi: टाटा समूह) is a multinational conglomerate based in Mumbai, India. In terms of market capitalization and revenues, Tata Group is the largest private company in India. It has interests in steel, automobiles, information technology, communication, power, tea and hotels. The Tata Group has operations in more than 85 countries across six continents and its companies export products and services to 80 nations. The Tata Group comprises 98 companies in seven business sectors, 27 of which are publicly listed. 65.8% of the ownership of Tata Group is held by the charitable trust of Tata. Companies which form a major part of the group include Tata Steel, Corus Steel, Tata Motors, Tata Consultancy Services, Tata Tea, Tata Power, Tata Communications and the Taj Hotels.

The group takes the name of its founder, Jamsedji Tata, a member of whose family has almost invariably been the chairman of the group. The current chairman of the Tata group is Ratan Tata, who took over from J. R. D. Tata in 1991. The company is currently in its fifth generation of family stewardship.