Raozan Upazila  Raozan () is an Upazila of Chittagong District in the Division of Chittagong, Bangladesh. It was established in 1947. Raozan has 45,775 households and a total area of 246.58 km². The two main rivers are Karnaphuli and Halda. Raozan is surrounded by Fatikchhari Upazila on the north, Boalkhali Upazila and Karnafuli river on the south, Rangunia and Kawkhali (Rangamati) Upazilas on the east, and Hathazari and Fatikchhari Upazila on the west. From about 1000 years before the conquest of Chittagong in 1666, the entire Chittagong region was under the control of the Buddhist religion, Mog or Arakanese. It is believed that in Arakan, it was called 'Raajwang' or the land of the royal family. The idea of eminent scholars is to say that Raozan has originated from the name of this name. In August 1947, the activities of Raozan Police Station were started and in 1984 it was turned into an upazila. It was declared as Raozan Municipality in 2000. On 13 April 1971, the Pak army carried out extensive loot and firing in Raozan Upazila of Pahartali union Unsotturpara and killed 48 innocent people. On the same day, Saifuddin Khaled Chowdhury, Professor Dilip Kumar Chowdhury, Sheikh Mozaffar Ahmad, Abdur Rab and Yunus were martyred in front of the Chittagong Engineering College (now CUET) in front of the Pak army. The memorial plaques of the martyrs have been uncovered at the place. On April 13, 1971, the Pak army and the Razakars were brutally killed in front of his organization, Nutan Chandra Singha, founder principal of Kundeshwari Pharmacy. In addition, 35 Pakistani soldiers were killed arbitrarily by the Jagatmallapara of Ward No. 4 in Raozan Municipality. Mass killing site: 3 (Unsotturpara, Jagatmallapara, Gohira-Shilapara)  Raozan is an upazila of Bangladesh's liberation movement and many memories of the great liberation war. The birthplace of Raozan has been written on the pages of the history of many great people.