The National Emergency Management Agency (Mongolian: Онцгой байдлын ерөнхий газар, romanized: Ontsgoi Baidlyn yerönkhii gazar) or NEMA (ОБЕГ, OBYeG) is a paramilitary government agency overseeing emergency services in Mongolia.

It is responsible for developing environmental legislation as well as managing the fall out from natural disasters and conducting rescue work.

Emergency services in the country have dated back to 1922 when they were first formed at the initiative of the partisan leader Damdin Sükhbaatar.

The Law on the Civil Defense of Mongolia, adopted by the State Great Hural in 1994, stated that "civil defense is a complex of measures aimed at the prevention, protection and rescue of the population and their property from afflictions caused by mass destruction weapons".

[1] During the steppe fires in 1996, contingents of the armed forces participated in civil defense activities in 5-8 provinces.