Ahmednagar district (अहमदनगर in Marathi/Hindi) is the largest district of Maharashtra state in western India. The historical Ahmednagar city is the headquarters of the district. Ahmednagar was the seat of the Ahmednagar Sultanate of late medieval period (1496–1636 CE). This district is known for the town of Shirdi associated with Sai Baba. Ahmednagar district is part of Nashik Division.

The neighbouring districts to Ahmednagar district are Solapur (South East- SE), Osmanabad (SE), Beed (SE), Aurangabad (NE), Nashik (NW), Thane (NW), and Pune (SW).

The name of the district is derived from the headquarters of the district, Ahmednagar. The city of Ahmednagar was named after the founder of the city, Malik Ahmed Shah Bahri, the first ruler of the Nizam Shahi dynasty (1490 ? 1509 CE) who laid the city's foundation in 1494 CE.

Ahmednagar  pronunciation (help·info) is a city of Ahmednagar District in the state of Maharashtra, India, on the west bank of the Sina river, about 120 km northeast of Pune and 120 km from Aurangabad. Ahmednagar District is the largest district in the state of Maharashtra. Sugar, milk and bank co-operatives thrive here. Ahmednagar is home to 19 sugar factories and is also the birthplace of the cooperative movement. Due to scarce rainfall, Ahmednagar often suffers from drought. Though citizens learn multilingual (e.g. English, Hindi, Marathi, Urdu) education in schools, Marathi is the primary language for daily-life communication. Hindi is also widely understood and spoken, though of the Dakhani (or Hyderabadi Urdu) dialect, with a lot of grammar and loan words from Marathi. Ahmednagar has recently published a plan of developing the city by year 2031.

As of 2011 Indian census, Ahmednagar had a population of 347,549. Males constitute 53% of the population and females 47%. Ahmednagar has an average literacy rate of 84%, higher than the national urban average of 79.9%. 10% of the population is under 6 years of age.