Noida, short for New Okhla Industrial Development Authority (ISO: Navīna Ōkhalā Audyōgika Vikāsa Prādhikaraṇa), is a city located in Gautam Buddha Nagar district of the Indian state of Uttar Pradesh. Noida is a satellite city of Delhi and is a part of the National Capital Region. As per provisional reports of Census of India, the population of Noida in 2011 was 642,381. The city is managed by New Okhla Industrial Development Authority (NOIDA). The district's administrative headquarters are in the nearby city of Greater Noida.

The city is a part of the Noida (Vidhan Sabha) constituency and Gautam Buddha Nagar (Lok Sabha) constituency. Noida was ranked as the "Best City in Uttar Pradesh" in the "Best City Awards" conducted by ABP News in 2015. It is also ranked the cleanest city in medium category cities (cities with a population of 300,000 to 1,000,000) and 4th cleanest city among cities with less than 1,000,000 people.