The Strait of Malacca is a narrow stretch of water, 500 mi long and from 40 to 155 mi wide, between the Malay Peninsula to the northeast and the Indonesian island of Sumatra to the southwest, connecting the Andaman Sea and the South China Sea. As the main shipping channel between the Indian and Pacific oceans, it is one of the most important shipping lanes in the world. It is named after the Malacca Sultanate that ruled over the strait between 1400 and 1511, the center of administration of which was located in the modern-day state of Malacca, Malaysia.

The Malacca Sultanate was a Malay sultanate based in the modern-day state of Malacca, Malaysia. Conventional historical thesis marks c. 1400 as the founding year of the sultanate by King of Singapura, Parameswara, also known as Iskandar Shah, although earlier dates for its founding have been proposed. At the height of the sultanate's power in the 15th century, its capital grew into one of the most important transshipment ports of its time, with territory covering much of the Malay Peninsula, the Riau Islands and a significant portion of the northern coast of Sumatra in present-day Indonesia.