NIAC

NIAC may refer to:

• NASA Institute for Advanced Concepts, a NASA program
• National Indoor Athletics Centre, an indoor track and field athletics sports venue
• National Infrastructure Advisory Council, a council of the United States Department of Homeland Security
• National Iranian American Council, an association of Iranian-Americans
• Nebraska-Iowa Athletic Conference, an NAIA-affiliated college athletics conference
• Northern Ireland Assembly Commission, the corporate body of the Northern Ireland Assembly

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