JGSDF Metabaru Airfield (ICAO: RJDM) is a military airfield operated by the Japan Ground Self-Defense Force, located near Yoshinogari in Saga Prefecture, Kyushu, Japan. It serves as a base for JGSDF aviation units, primarily supporting rotary-wing operations including helicopter training and transport missions. The airfield is a restricted military installation with no scheduled commercial passenger services. It does not hold an IATA code and is not open to civilian air traffic under normal circumstances. Operations are focused on defense-related aviation activities consistent with JGSDF requirements in the region.