Hatiya () is an upazila (sub-district) of Noakhali District in Bangladesh's Chittagong Division. It encompasses of a small archipelago in southeastern Noakhali, most notably Hatiya Island, Nijhum Dwip, Domar Char, Kolatoli Char, Bhasan Char and Swarna Dweep.
The Hatiya thana was established with Hatiya Island as its largest and principal island. In 1983, Hatiya Thana was upgraded to an upazila (sub-district) as part of the President of Bangladesh Hussain Muhammad Ershad's decentralisation programme.
Hatia-Nijhum Island is being illuminated with electricity at a cost of Tk 400 crore. After 50 years, 30,000 customers are being connected to electricity services in the form of 15 MW power plants. It is learned that the cost of this project will be 364 crore 36 lakh 15 thousand taka.
Hatiya Upazila is located at . It has 47,970 household units and a total area of 2,100 square kilometres. It is bounded by the Subarnachar Upazila to its north, Ramgati Upazila to its northwest, the Bay of Bengal to the east and south, and Manpura Upazila to its west.
According to the 2022 Bangladeshi census, Hatiya Upazila had 112,032 households and a population of 537,366. 13.82% of the population were under 5 years of age. Hatiya had a literacy rate (age 7 and over) of 64.40%: 64.66% for males and 64.14% for females, and a sex ratio of 104.04 males for every 100 females. 110,126 (20.49%) lived in urban areas.
According to the 2011 Census of Bangladesh, Hatiya Upazila had 91,013 households and a population of 452,463. 144,508 (31.94%) were under 10 years of age. Hatiya had a literacy rate (age 7 and over) of 34.21%, compared to the national average of 51.8%, and a sex ratio of 1021 females per 1000 males. 86,514 (19.12%) lived in urban areas.
The upazila consists of 52 markets and bazaars. They include Oskhali, Afazia, Tamruddi, Chowmuhani, Sagaria, Jahajmara, Sonadia chowrasta, Char Chenga, Maijdee Bazar and Nalchira Bazar. Most people are employed in agriculture and fishing, and a few professions are government or non-governmental jobs. All banks are run by the government including Krishi Bank, Sonali Bank Limited, and Janata Bank Limited.
The main exports include rice, coconut, betel nut, banana, betel leaf, chili, Hilsa, and other types of fish.
Hatiya Upazila is divided into one Municipality, the Hatiya Municipality, and 11 Union parishads:
The union parishads are subdivided into 44 mauzas and 62 villages. Hatiya Upazila is represented as the Noakhali-6 constituency in the Jatiya Sangsad.
There is one Upazila Health Complex and 10 family planning centres. Notable NGOs operating in this area are Grameeen bank, Dwip Unnoyan Songstha, Brac, Proshika, Heed Bangladesh, CARE, and Caritas. There is also some private diagnostic center with Hatiya Doctor's Lab (Founder-Dr.Md.Iqbal Ansari â 1995)
Institutions of higher education include Hatiya Dwip Government College and three non-governmental colleges. Some of the schools include:
Hatiya Upazila has orphanage facilities across its territory. These include Hatiya Island Orphanage, Darul Aitam Oskhali and the Jahazmara Orphanage.