The Strait of Hormuz ( Persian: تنگه هرمز Tangeh-ye Hormoz listen , Arabic: مَضيق هُرمُز Maḍīq Hurmuz, or Arabic: مَضيق باب السلام Madīq Bab Al Salam ["the door of peace"]) is a strait between the Persian Gulf and the Gulf of Oman. It provides the only sea passage from the Persian Gulf to the open ocean and is one of the world's most strategically important choke points. On the north coast lies Iran, and on the south coast lies the Musandam peninsula, shared by the United Arab Emirates and Musandam Governorate, an exclave of Oman. The strait is about 90 nautical miles (167 km) long, with a width varying from about 52 nautical miles (96 km) to 21 nautical miles (39 km).

A third of the world's liquefied natural gas and almost 25% of total global oil consumption passes through the strait, making it a highly important strategic location for international trade.