Lucknow District (Hindi: लखनऊ ज़िला, Urdu: لکھنؤ ضلع) is a district located in the Uttar Pradesh state in northern India. The city of Lucknow is the district headquarters and the district is part of Lucknow Division and also is the capital of Uttar Pradesh.The City was established in 1775 as the nawab of Awadh moved his capital from Faizabad to Lucknow and made it one of the most prosperous and glittering cities in all India.

Located in what was historically known as the Awadh region, Lucknow has always been a multicultural place. Courtly mannerism, lofty gardens, poetry, music, and fine traditional cuisine patronized by the Persian-loving Shia Nawabs are well known amongst Indians and students of South Asian culture and history.

The climate of Lucknow district is predominantly subtropical in nature. Hot atmosphere during the months of May and June and heavy rainfalls during the months of June, July and August are the typical characteristics of Lucknow.

According to the 2011 census Lucknow district has a population of 4,588,455, roughly equal to the nation of Georgia or the US state of Louisiana. This gives it a ranking of 31st in India (out of a total of 640). The district has a population density of 1,815 inhabitants per square kilometre (4,700 /sq mi) . Its population growth rate over the decade 2001-2011 was 25.79 %. Lucknow has a sex ratio of 906 females for every 1000 males, and a literacy rate of 79.33 %.

Lucknow /ˈlʌknaʊ/ (Hindi: लखनऊ, Urdu: لکھنؤ, Lakhnaū, IPA: [ˈləkʰnəu] ( listen)) is a city in India and capital of the state of Uttar Pradesh. Lucknow is the administrative headquarters of Lucknow District and Lucknow Division. Located in what was originally known as the Awadh (Oudh) region, Lucknow has always been known as a multicultural city, and flourished as a cultural and artistic capital of North India in the 18th and 19th centuries. Courtly manners, beautiful gardens, poetry, music, and fine cuisine patronised by the Shia Nawabs of Iranian origin, are well known amongst Indians and students of South Asian culture and history. Lucknow is popularly known as The City of Nawabs. It is also known as the "Golden City of the East," "Shiraz-i-Hind" and "The Constantinople of India."

The ancient history of Lucknow is mired in mystries and folk sayings. It is popularly believed that Lucknow (लखनऊ) derives its name from Lakshman (लक्ष्मण) (also known as Lakhan (लखन)), younger brother of Lord Rama, greatest hero of Suryawanshi kshatriya clan of India. Ram ordered Lakshman to establish a new town near Ayodhya, the capital of Rama. Lakshman came and built a strong fort. The present Lakshman Teela (लक्ष्मण टीला) in Lucknow is believed to be the site of ancient city of Lakhanpur built by Lakshman.