Corinthia is a Kingdom of Hyboria. Lanjau is a lost city in Corinthia.

Corinthia is a nominally unified kingdom. But has more-often-than-not been depicted as a loose confederation of city states. Each has its own ruler or rulers, often different systems of government and even its own army. The central government is ruled by a King of Corinthia. What his/her powers are differ depending on the time and situation present. The capital is Akbitana. The Road of Kings, a major trade route, passes through Corinthia. Making her another important location for the trade of the era.

The economy is largely based on animal husbandry and agriculture. There are mines in the area but, unlike Ophir, their output is not sufficient to support the needs of the state. The city-states serve as centers of trade and industry. Corinthian armies supposedly consist of " highly disciplined battle phalanxes" with "fearsome weaponry". While not a major player of the Hyborian world, Corinthia can clearly defend itself.

Corinthia is landlocked. To the west lies Ophir, famous for its goldmines. To the south is Koth, a major power. To the east is Zamora. To the north are the powerful Nemedia and Brythunia.