The Vilayet of Beirut is a first-level administrative division (vilayet) of the Ottoman Empire.

It is established from the coastal areas of the Syria Vilayet in 1888 as a recognition of the new-found importance of its booming capital, Beirut, which had experienced remarkable growth in the previous years. By 1907, Beirut handles eleven percent of the Ottoman Empire's international trade.[

It stretches from just north of Jaffa to the port city of Latakia.

It is bounded by the Syria Vilayet to the east, the Aleppo Vilayet to the north, the autonomous Mutasarrifate of Jerusalem to the south and the Mediterranean Sea to the west.

At the beginning of the twentieth century, it reportedly has an area of 11,773 square miles (30,490 km2), while the preliminary results of the first Ottoman census of 1885 (published in 1908) give the population as 533,500.

It is the fourth most heavily populated region of the Ottoman Empire's thirty-six provinces.