HNC

HNC may refer to:


 * Hydrogen isocyanide, a molecule with the formula HNC that is important to the field of astrochemistry
 * Heptanitrocubane, an experimental high explosive
 * Higher National Certificate, a higher education qualification in the United Kingdom
 * High Negotiations Committee, a Syrian political-military opposition bloc headquartered in Riyadh
 * Classical-map Hyper-Netted-Chain equation, a method in many-body theoretical physics for interacting uniform electron liquids in two and three dimensions
 * Hypernetted-chain equation, a closure relation to solve the Ornstein-Zernike equation commonly applied in statistical mechanics and fluid theory
 * Hopkins-Nanjing Center, a joint educational venture between Nanjing University and Johns Hopkins University located in Nanjing, China
 * Habits & Contradictions, album by Schoolboy Q
 * Huddersfield Narrow Canal, Northern England