The acronym NCCT may mean:

• The National Committee for Counter Trafficking, a National Committee in Cambodia
• Non-Cooperative Countries or Territories, designated by the FATF
• "Na-Cl co-transporter", or sodium-chloride symporter
• National Center for Competency Testing, an American certification organization
• National Center for Computational Toxicology, office under United States Environmental Protection Agency
• Network-Centric Collaborative Targeting, a military collaboration program by L3 Communications
• Non-contrast computed tomography

• List of longest rivers of New Mexico
• List of longest rivers of New York
• List of longest rivers of North Carolina
• List of longest rivers of North Dakota
• List of longest rivers of Ohio
• List of longest rivers of Oklahoma
• List of longest rivers of Oregon
• List of longest rivers of Pennsylvania
• List of longest rivers of Rhode Island
• List of longest rivers of South Carolina
• List of longest rivers of South Dakota
• List of longest rivers of Tennessee
• List of longest rivers of Texas
• List of longest rivers of the United States (by main stem)
• List of longest rivers of Utah
• List of longest rivers of Vermont
• List of longest rivers of Virginia
• List of longest rivers of Washington
• List of longest rivers of West Virginia
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• List of longest rivers of Wyoming
• List of longest ruling non-royal leaders
• List of longest ruling non-royal national leaders
• List of longest-ruling non-royal national leaders since 1870
• List of longest ruling non-royal national leaders since 1870