Oro Bay Airfield (also known as Cape Sudest Airfield) is a former World War II airfield in Oro Province, Papua New Guinea. The airfield was abandoned after the war and today is almost totally returned to its natural state.

Oro Bay Airfield was primarily an emergency landing field, although it was briefly used as a headquarters base for the 308th Bombardment Wing (1 February-2 July 1944) and as an operational airfield for the 417th Bombardment Group (28 January-4 February 1944) which flew A-20 Havocs. Operational squadrons assigned to the airfield were:

• 672d Bombardment Squadron: 28 January-4 February 1944
• 673d Bombardment Squadron: 28 January-4 February 1944
• 674th Bombardment Squadron: 28 January-4 February 1944

In addition, the 547th Night Fighter Squadron flew a night fighter variant of the P-38 Lightning and P-61 Black Widow from the airfield (5 September-6 October 1944).

• USAAF in the Southwest Pacific

 This article incorporates public domain material from the Air Force Historical Research Agency

• Maurer, Maurer (1983). Air Force Combat Units Of World War II. Maxwell AFB, Alabama: Office of Air Force History. ISBN 0-89201-092-4.
• www.pacificwrecks.com