Singapore Strait, channel, 30 mi (48 km) long and 10 mi (16.1 km) wide, between Singapore island and the Riau Archipelago, Indonesia. It links the Strait of Malacca with the South China Sea and is a major shipping route of SE Asia.

The Singapore Strait (or Straits of Singapore; ) is a 105 kilometer long, 16 kilometer wide strait between the Strait of Malacca in the west and the South China Sea in the east. Singapore is on the north of the channel and the Riau Islands are on the south. The Indonesia-Singapore border lies along the length of the straits.

It includes Keppel Harbour and many small islands. The strait provides the deepwater passage to the Port of Singapore, which makes it very busy.

See also

• Straits of Johor