The M-84 is a Yugoslav 2nd generation main battle tank. The M-84 is in service in Bosnia and Herzegovina, Croatia, Kuwait, Slovenia and Serbia.

The M-84 is based on the Soviet T-72 but with several improvements, including: a domestic fire-control system, improved composite armor, and a 1000-hp engine. The M-84 entered service with the Yugoslav People's Army in 1984. The improved M-84A version entered service a few years later.

There were about 240 Yugoslav factories which directly participated in the production of the M-84 and about 1,000 others which participated indirectly. The main factories were:

In the late 1980s, a project for a replacement tank called the M-91 Vihor (Whirlwind) was started. Unlike the M-84, the Vihor was not a copy of a Soviet tank, but a new design from scratch. Two prototypes were created by 1991. One was completely finished, but the factory refused to deliver it to the Yugoslav People's Army. The second prototype only had its body completed. Due to the disintegration of Yugoslavia, the M-91 project was paused until the end of the civil war in Croatia. After 1994, the second tank body was fitted with a new turret and the entire project was renamed Croatian main battle tank M-95 Degman. The M-95 Degman is still in prototype phase.