Melandaha (Bengali: মেলান্দহ) is an upazila of Jamalpur District in the Division of Mymensingh, Bangladesh.

[3] Melandaha Thana was formed on 21 May 1925 and it was turned into an upazila on 15 April in 1983.

[3] Melandaha Upazila is divided into Melandaha Municipality and 11 union parishads: Adra, Char Banipakuri, Durmot, Fulkocha, Ghuserpara, Jhaughara, Kulia, Mahmudpur, Nangla, Nayanagar, and Shuampur.

[5] According to the 2011 Census of Bangladesh, Melandaha Upazila had 79,390 households and a population of 313,182.

Melandaha has a literacy rate (age 7 and over) of 35.7%, compared to the national average of 51.8%, and a sex ratio of 1032 females per 1000 males.