The Honourable The Irish Society is a consortium of livery companies of the City of London established during the Plantation of Ulster to colonise County Londonderry. It was created in 1609 within the City of London Corporation, and incorporated in 1613 by royal charter of James I. In its first decades the society rebuilt the city of Derry and town of Coleraine, and for centuries it owned property and fishing rights near both towns. Some of the society's profits were used to develop the economy and infrastructure of the area, while some was returned to the London investors, and some used for charitable work.

Derry, officially Londonderry, is the largest city in County Londonderry, the second-largest in Northern Ireland and the fifth-largest on the island of Ireland. The old walled city lies on the west bank of the River Foyle, which is spanned by two road bridges and one footbridge. The city now covers both banks.