What is the name of the strait that connects the Red Sea to the Indian Ocean?

The strait connecting the Red Sea to the Indian Ocean is the Bab-el-Mandeb.

Bab-el-Mandeb lies between Yemen on the Arabian Peninsula and Djibouti and Eritrea in the Horn of Africa. More precisely, it connects the Red Sea with the Gulf of Aden, which opens into the Indian Ocean. The island of Perim divides the strait into two channels, making its geography especially important to navigation.

Its name is commonly translated from Arabic as “Gate of Lamentation” or “Gate of Sorrow,” probably referring to the dangers historically associated with navigating the narrow passage. At its narrowest, the strait is about 26 kilometres wide. Currents move in different directions through its channels, adding to the navigational complexity.

Bab-el-Mandeb is one of the world’s major maritime chokepoints. Ships traveling between the Indian Ocean and the Mediterranean usually pass through it before entering the Red Sea and then the Suez Canal. It is often confused with the Suez Canal, but the canal is an artificial waterway in Egypt; Bab-el-Mandeb is a natural strait at the southern entrance to the Red Sea. The Strait of Hormuz is farther east, linking the Persian Gulf with the Gulf of Oman.