The Middle East (or, formerly more common, the Near East) is a region that spans southwestern Asia, southeastern Europe, and northeastern Africa. It has no clear boundaries, often used as a synonym to Near East, in opposition to Far East. The term "Middle East" was popularized around 1900 in the United Kingdom. The corresponding adjective to Middle East is Middle-Eastern and the derived noun is Middle-Easterner.

The history of the Middle East dates back to ancient times, and throughout its history the Middle East has been a major centre of world affairs. The Middle East is also the historical origin of three of the world’s major religions—Judaism, Christianity, and Islam. The Middle East generally has an arid and hot climate, with several major rivers providing for irrigation to support agriculture in limited areas. Many countries located around the Persian Gulf have large quantities of crude oil. In modern times the Middle East remains a strategically, economically, politically, culturally and religiously sensitive region.

The term "Middle East" may have originated in the 1850s in the British India Office, and became more widely known when American naval strategist Alfred Thayer Mahan used the term. During this time the British and Russian Empires were vying for influence in Central Asia, a rivalry which would become known as The Great Game. Mahan realized not only the strategic importance of the region, but also of its center, the Persian Gulf. He labeled the area surrounding the Persian Gulf as the Middle East, and said that after the Suez Canal, it was the most important passage for Britain to control in order to keep the Russians from advancing towards India. Mahan first used the term in his article "The Persian Gulf and International Relations," published in September 1902 in the National Review, a British journal.