Derim Airport is a small airstrip located in the Markham District of Morobe Province, Papua New Guinea. It serves the rural community of Derim and provides a critical air link for residents who would otherwise have limited access to transportation in the rugged highland terrain. The airport operates under the ICAO code AYDE and IATA code DER. Like many rural airstrips in Papua New Guinea, it primarily supports light aircraft and missionary or charter flights, offering a lifeline for medical, cargo, and passenger services to an otherwise isolated community.