The Western Development Commission (WDC) is a statutory body established in 1997 to promote social and economic development in the Western Region (Counties Donegal, Leitrim, Sligo, Mayo, Roscommon, Galway and Clare).

The Authority has a statutory duty to advise the Government on matters affecting the Western Region and to promote Government policy aimed at improving social and economic standards there. The organization manages the WDC Investment Fund, which provides loans and equity to businesses and local communities in the region.

Their work is described in their "Work Smarter, Live Better" strategy. Published in 2019, the strategy sets out the organisation's roadmap for the next five years. The strategy is built on three pillars: regional advertising; regional leadership; and a sustainable enterprise reflecting the strategic goals of the organization in the short, medium and long term.