Al Tunaiji is a tribe that comes from the Adnan

Adnan

Adnan is the traditional ancestor of the Adnani Arabs of northern, central and western Arabia, as opposed to the Qahtani of Southern and south eastern Arabia who descend from Qahtan.-Origin:...

i part of Arabs and has its origin in Saudi Arabia

Saudi Arabia

The Kingdom of Saudi Arabia , commonly known in British English as Saudi Arabia and in Arabic as as-Sa‘ūdiyyah , is the largest state in Western Asia by land area, constituting the bulk of the Arabian Peninsula, and the second-largest in the Arab World...

. There is no documented source of the origin of this tribe though many of the Omani and Emarati historians consider them Adnani Arabs. The current area of residence of this tribe is Al-Dhaid

Dhaid

Dhaid, or Al Dhaid, is the capital of the central district of the Emirate of Sharjah. It is a large agricultural town surrounded by fertile land...

 town and ar-rams

Ar-rams

Al Hayr is a settlement in Ras al-Khaimah. It is about 25 km to the north of Ras al-Khaimah in the United Arab Emirates. It is a major historical town, which was the scene of many battles against the British. Ar-rams has around 2500 residents, most of whom are from the al Tunaiji tribe....

 in the United Arab Emirates

United Arab Emirates

The United Arab Emirates, abbreviated as the UAE, or shortened to "the Emirates", is a state situated in the southeast of the Arabian Peninsula in Western Asia on the Persian Gulf, bordering Oman, and Saudi Arabia, and sharing sea borders with Iraq, Kuwait, Bahrain, Qatar, and Iran.The UAE is a...

. There is also a minority of them living in Dibba Al-Hisn

Dibba Al-Hisn

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...

, a town in the eastern cost of the UAE.