Subramaniam Vishwanathan Iyer (born 25 December 1957), also known as S. "Vijay" Iyer, is the vice president and chief operating officer of the Multilateral Investment Guarantee Agency,[1] the former managing director of Rio Tinto India,[2] and had previously served as Director of Energy and Sustainable Development at the World Bank Group.

[4] He brought a pronounced focus on sustainability and safety, building partnerships with other companies and more broadly within the Indian Mining Industry.

[5] As senior vice president of the Federation of Indian Mineral Industries (FIMI) and the chair of its Sustainability Mining Initiative,[6] Iyer promoted sustainability initiatives and efforts aimed at lifting the public perception of mining in the country.

Prior to joining the World Bank, Iyer served as District collector through the Indian Administrative Service in the city of Indore in Madhya Pradesh, India.

During his term as Collector, Iyer worked to enhance government transparency, eliminate corruption in the police force, and restore historic sites in the greater Indore area.