Adoni is a city in the Kurnool district in the Indian state of Andhra Pradesh. It is a municipality and the headquarters of Adoni mandal, administered under the Adoni Revenue Division. In the 2011 census of India, Adoni had a population of 166,344, making it the 15th most populous town in the state with an urban agglomeration population of 184,625.

The 2011 Census, recorded a population of 166,537. The total population constituted 82,743 males and 83,794 females. These numbers produced a gender ratio of 1013 females per 1000 males, which was higher than the national average of 940 per 1000. In the same year, 18,406 children were between 0 and 6 years of age. In this group, 9,355 were boys and 9,051 were girls, giving a gender ratio of 968 per 1000. The average literacy rate was 68.38 percent with 101,292 literate people. This number was significantly lower than the national average of 73 percent.

The urban agglomeration had a population of 184,771, of which 92,006 were male and 92,765 were female, giving a gender ratio of 1008 females per 1000 males. Children aged 0 to 6 years numbered 20,517. There were 112,151 literate people giving an average literacy rate of 68.28 percent.

Telugu is an official language of the city. Kannada and Urdu are also widely spoken.

Adoni is an important trading center with a large market situated in the center of the town. Adoni is a large producer of cotton and has a substantial ginning and textile industry. The next most important industry is groundnut oil. Adoni is an important trading center in Andhra Pradesh with a large market situated in the center of the town.