Dibba Al-Hisn is an enclave of the emirate of Al-Sharjah, one of the seven of the United Arab Emirates. It is bordered by the Gulf of Oman from the East, Dibba Al-Baya from the North, and Dibba Al-Fujairah from the South. It is also geographically part of the Dibba region. It is the smallest in size among the other Dibbas. It is mostly known for the its fish market and the ancient fortress, where it got its name from. Also known for its high density population relative to the other Dibbas.

Dibba Al-Hisn believed to be the site where the Portuguese during the Iberian Union built a fort and a wall around the city.[1] In August 1648, the Arabs besieged Muscat, Oman and on October 31, 1648 a treaty was signed between the two opponents. The terms were as follows: the Portuguese should build the fortress of Kuriyat, Dibba Al-Hisn and Matrah(Oman). [2]

Note: There have been land disputes between Dibba Al-Hisn and Dibba Al-Baya but these were resolved in the 1990s.

A branch of the Community College of the University of Sharjah[3] is available in Dibba Al-Hisn.

Dibba (Arabic: دبا; Portuguese: Doba), sometimes spelled Diba or Daba, is a coastal region at the northeastern tip of the United Arab Emirates(UAE)/Oman peninsula on the Gulf of Oman. It is politically divided into three parts:

This large natural harbour on the east coast of the northern Emirates has been an important site of maritime trade and settlement since the pre-Islamic era. There is some slight evidence, mainly from tombs, of settlement during the later 2nd millennium and the early first millennium BC, contemporary with such sites as Shimal, Tell Abraq and Rumeilah. There is also scattered occupation during the period of al-Dur and Mileiha but it is in the period just prior to, and after, the coming of Islam that we hear most about Dibba. Under the Sasanians, and their Omani clients the Al-Julanda, an important market existed at Dibba and that it was sometimes the capital of Oman. According to Ibn Habib "merchants from Sindh, India, China, people of the East and West came to it."