Yos Sudarso Bay

Yos Sudarso Bay (Indonesian: Teluk Yos Sudarso) also known earlier as Humboldt Bay is a small bay in Indonesia. It is on the north coast of New Guinea, about 50 kilometers west of the border between Indonesia's province of Papua and the country of Papua New Guinea. The Indonesian provincial capital Jayapura is situated on the bay.

Since the early 20th century, both the bay and the city have had several different names, often with varying English spellings. The current name memorializes Indonesian Admiral Yos Sudarso, killed in a 1962 naval engagement between the Dutch and Indonesians.

In World War II Teluk Yos Sudarso was known as Humboldt Bay, and Jayapura was known as Hollandia. Occupied by the Japanese in April 1942, the area was liberated by U.S. forces on April 22, 1944, and became home to a massive U.S. naval base. It served as General Douglas MacArthur's headquarters until the conquest of the Philippines in March 1945.