INC can refer to:

• Indian National Congress
• Iraqi National Congress
• Iglesia ni Cristo
• International Network of Crackers, a major warez organization during the early 1990s.
• The International Corporation
• The (International) Noise Conspiracy

• As "Inc." or "inc.", it is an abbreviation for "incorporated", see corporation.
• An assembler command meaning to increment the variable given by an offset. (inc ^*,2)