Agra District (Hindi: आगरा ज़िला, Urdu: آگرہ ضلع) is one of the 70 districts of Uttar Pradesh state of India, and the historical city of Agra is the district headquarters. Agra district is a part of Agra division.

Agra district is bounded by Mathura District on the north, Dholpur District of Rajasthan state on the south, Firozabad District on the east and Bharatpur District of Rajasthan State on the west. Area of the district is 4027 km².

Agra district comprises 6 tehsils. The tehsils are Etmadpur, Agra, Kiraoli, Kheragarh, Fatehabad and Bah. The headquarters of the district is Agra city. The district consists of 15 blocks, namely Etmadpur, Khandauli, Shamshabad, Fatehabad, Jagner, Kheragarh, Saiyan, Achanera, Akola, Bichpuri, Fatehpur Sikri, Barauli Ahir, Bah, Pinahat and Jaitpur Kalan.

The division comprises 3 Lok Sabha constituencies namely Jalesar, Firozabad and Agra. There are 9 Vidhan Sabha constituencies in the district. They are Bah, Fatehabad, Etmadpur, Dayal Bagh, Agra Cantonment, Agra East, Agra West, Kheragarh and Fatehpur Sikri.

Agra (ⁱ/ˈɑːɡrə/; Hindi: आगरा, Urdu: آ گرہ), the erstwhile capital of Hindustan, is a city on the banks of the river Yamuna in the northern state of Uttar Pradesh, India, 363 kilometres (226 mi) west of state capital, Lucknow and 200 kilometres (124 mi) south of the national capital New Delhi. With a population of 1,686,976 (2010 est.), it is one of the most populous cities in Uttar Pradesh and the 19th most populous in India. Because 80 percent of the city's sewage flows into Yamuna River, it is 20th most polluted city in India. Agra can also refer to the administrative district that has its headquarters in Agra city.

The city finds mention in the epic Mahābhārata where it was called Agrevaṇa, or 'the border of the forest'. Legend ascribes the founding of the city to Rājā Badal Singh, a Sikarwar Rajput king (circa 1475), whose fort, Badalgarh, stood on or near the site of the present Fort. However, the 11th century Persian poet Mas'ūd Sa'd Salmān writes of a desperate assault on the fortress of Agra, then held by the Shāhī King Jayapala, by Sultan Mahmud of Ghazni. Sultan Sikandar Lodī was the first to move his capital from Delhi to Agra in the year 1506; he died in 1517 and his son Ibrāhīm Lodī remained in power there for nine more years, finally being defeated at the Battle of Panipat in 1526. It achieved fame as the capital of the Mughal emperors from 1526 to 1658 and remains a major tourist destination because of its many splendid Mughal-era buildings, most notably the Tāj Mahal, Agra Fort and Fatehpūr Sikrī, all three of which are UNESCO World Heritage Sites.