Alamdanga (Bengali: আলমডাঙ্গা) is an upazila of Chuadanga District in the Division of Khulna, Bangladesh.

As of the 2011 Census of Bangladesh, Alamdanga upazila had 86,299 households and a population of 345,922.

[6][7] As of the 2001 Bangladesh census, the population of the upazila was 308,917; males 158,951, females 149,966; Muslims 299,001, Hindus 8,919, Christians 11 and others 109.

[9] Main source sources of income: Agriculture 41.76%, non-agriculture labourer 27.35%, industry 0.84%, business 12.54%, service 3.78%, construction 0.87%, religious service 0.17%, rent and remittance 0.43%, transport and communication 2.89% and others 6.01%.

Alamdanga Upazila is divided into Alamdanga Municipality and 15 union parishads: Ailhash, Belgachi, Baradi, Bhangbaria, Chitla, Dauki, Gagni, Hardi, Jamjami, Jehala, Kalidashpur, Khadimpur, Khashkorara, Kumari, and Nagdah.