Orgrimmar is the seat of power for the Horde and the capital city of the orcs, but also has many trolls and other members of the Horde. Found at the northern edge of Durotar, the imposing city is home to the troll Warchief, Vol'jin. As with all capital cities, it has a bank, class, profession trainers, and an auction house.

Orgrimmar has been the central hub of the orcish community since the end of the Third War. The city was founded by Thrall and named after his friend and mentor, the former Warchief Orgrim Doomhammer. It is a fortified complex guarded by stout walls, massive gates and tall towers. The mountainous ranges of northern Durotar form a natural barrier to the rear of the fortress, and parts of the complex are carved into the mountain itself.

Orgrimmar is openly hospitable to all members of the Horde and is an important center of commerce. Visitors may fly into the city by way of zeppelin or wyvern, or simply walk through the fortress's main gates.

Thrall led the orcs to the continent of Kalimdor, where they founded a new homeland with the help of their tauren brethren. Naming their new land Durotar after Thrall's father Durotan, the orcs settled down to rebuild their once-glorious society. The demonic curse on their kind ended, the Horde changed from a bloodthirsty, warlike juggernaut into more of a loose coalition, dedicated to survival and prosperity rather than conquest. Aided by the noble tauren and the cunning trolls of the Darkspear tribe, Thrall and his orcs looked forward to a new era of peace in their own land. From there, they began the creation of the great warrior city, Orgrimmar.

Today, Orgrimmar lies at the base of a mountain between Durotar and Azshara. A warrior city indeed, it is home to countless amounts of orcs, trolls, and tauren. An increasing amount of Forsaken are now joining the city, as well as the blood elves who have recently been accepted into the Horde.