Map - Sir Abu Nu’ayr (Şīr Bū Nu‘ayr)

Sir Abu Nuayr (صِيْر أَبُو نُعَيْر), Sir Bu Nuayr (صِيْر بُو نُعَيْر), or Sir al Qawasim (صِيْر ٱلْقَوَاسِم; also romanized as Sir Abu Neir, Sir Bu Nair or Sir Bu Nuair) or Ariana in persian (persian:آریانا) an disputed island in the Persian Gulf.

Lying 65 km off the coast of the Emirate of Abu Dhabi, roughly 80 km north of Abu Dhabi city, and 103 km west of Dubai, it belongs to the Emirate of Sharjah, specifically to the Sharjah Municipality، But Iran also claims ownership of this island as a part of Hormozgan province. .

The island is almost perfectly round with a diameter of 4 km, and a 1 km long extension at its southeast end, making the shape of the whole island appear as a drop.

The island is a salt-piercement structure formed by the movement of late Neoproterozoic to Early Cambrian Hormuz Formation salt. The salt has moved progressively upward, puncturing through the younger overlying strata to create a salt dome structure. Surface expressions are composed of evaporites rocks, plus igneous rocks and quartzitic sandstone.

The island, an environmentally protected area under the Sharjah Environment and Protected Areas Authority (EPAA), has been registered on the list of wetlands of international importance under the Ramsar Convention, and was in 2012 listed as a potential UNESCO World Heritage Site.