Ras al Hadd is a village in Ash Sharqiyah district in Oman. It is considered the last point in the East of Oman and is located in the conjunction between the Gulf of Oman and the Arabian Sea.

Coordinates: 22°31′01″N 59°46′01″E / 22.517°N 59.767°E / 22.517; 59.767

Al Hidd (Arabic: الحد‎) is a town in Bahrain, located on a sand spit on the southeastern extremity of Muharraq Island. The town is of Sunni population, of bedouin tribal origin, huwala, or Afro-Arabs. About a third of the inhabitants of Hidd are of Omani descent.

Before the discovery of oil in Bahrain, the inhabitants of Hidd were largely involved in the fishing or pearl diving industries. Many of Bahrain's fijiri performance groups are based in Hidd.

Hidd used to be administered under its own municipality, but today it falls under the Muharraq Governorate. South of Hidd town lies the Hidd Industrial Area, built on reclaimed land. In addition to several factories, the Industrial Area has built on it a large power plant, a water desalination plant (which supplies 75% of Bahrain's clean water requirements), and a drydock (Arab Shipbuilding and Repair Yard or ASRY).

Hidd lies south of the Bahrain International Airport and Arad. The Shaikh Khalifa Causeway connects Hidd to Juffair on Bahrain Island.