Greater Noida Industrial Development Authority (GNIDA), simply sometimes Greater Noida Authority and at times shortened to GreNo Authority, is a nodal agency and planning authority solely responsible for the administration of Greater Noida city in the Gautam Buddha Nagar district of the Indian state of Uttar Pradesh. It comes under the Uttar Pradesh government's Department of Infrastructure and Industrial Development.
Established in January 1991 by the Government of Uttar Pradesh during the First Mulayam Singh Yadav ministry under the UP Industrial Area Development Act, 1976, it is responsible for the city's overall planning, development, maintenance, regulation and operation and is among the nine industrial development authorities of Uttar Pradesh.