National September 11 Memorial and Museum Act of 2011- Authorizes the Secretary of the Interior to accept from the Board of Directors of the National September 11 Memorial and Museum at the World Trade Center Foundation, Inc., the donation of title to the National September 11 Memorial and Museum at the World Trade Center in New York City, New York.
Requires approval of the donation by the governor of New York, the governor of New Jersey, and the mayor of New York City.
Authorizes the Secretary to: (1) provide technical and financial assistance to the Board that is related to the operation of the Memorial; and (2) consult with and seek technical assistance from the Secretaries of Defense (DOD), Education, Homeland Security (DHS), Housing and Urban Development (HUD), and the Administrator of General Services (GSA) in providing such technical and financial assistance to the Board.