Abraham Lincoln National Heritage Area Act - Establishes the Abraham Lincoln National Heritage Area in Illinois, which shall include: (1) a core area in central Illinois comprising 42 counties; (2) any sites, buildings, and districts within the core area that are recommended in the management plan; and (3) specified related historic sites, museums, and places, including the Lincoln Tomb State Historic Site, the Lincoln Douglas Debate Museum, and the Abraham Lincoln Presidential Library & Museum.
Directs the Looking for Lincoln Heritage Coalition to submit a management plan for the Area.
Authorizes appropriations. Limits the federal cost share of any activity carried out using funds made available under this Act to 50%.