GNC may refer to:

Politics

• General National Congress, the former legislative authority of Libya
• Green National Committee, the governing body of the Green Party of the United States
• Green National Convention, of the Green Party of the United States
• Générations NC, political party in New Caledonia

Schools

• Guagua National Colleges, in Pampanga, Philippines
• Guru Nanak College (disambiguation)

Other uses

• GNC (store), for "General Nutrition Centers", an American fitness and nutrition supplements retail chain
• GNC hypothesis, on the origin of genes
• All pages with titles containing GNC
• Gandhinagar Capital railway station, in Gujarat, India
• Gender nonconformity, an individual's behavior that does not match gender norms
• Geographical Names Committee, a Chinese organization adopting SASM/GNC romanization
• Gibraltar Nynex Communications, a former telecommunications operator in Gibraltar
• Global Night Commute, a 2006 protest event
• Good Neighbour Council, a post-World War II program of the Government of Australia
• Greencore, an Irish food company
• Guanche language
• Guidance, navigation, and control, in aeronautics
• A cocaine hapten analog

This disambiguation page lists articles associated with the title GNC.
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