Malay Peninsula, a long, narrow, spoon-shaped tongue of land in Southeast Asia. It is bounded on the east by the Gulf of Thailand and the South China Sea; on the south by the Strait of Malacca; and on the west by the Andaman Sea. The peninsula varies from 40 to 200 miles (64 to 320 km) in width and extends nearly 900 miles (1,450 km) southeastward almost to Singapore. There, near the Equator, is the southernmost mainland point of Asia. Much of the peninsula is mountainous and covered by tropical forests. The climate is hot and humid. Thousands of small islands dot the coast. The peninsula produces much of the world's tin, natural rubber, and palm oil.

Politically, the peninsula is divided between Thailand, Burma, and Malaysia. Singapore occupies islands off the peninsula's tip.