International Concepts, a Macy's brand of clothing.

Iglesia Ni Cristo, an independent, nontrinitarian Christian religious organization that originated in the Philippines.

Indian National Congress, a major political party in India.

Iraqi National Congress, an Iraqi anti-Saddam Hussein group.

Incorporation (business) - Inc. is an abbreviation for "Incorporated" (Corporation)

Increment, a shortform in computer programming languages, particularly assembler mnemonics.

International Network of Crackers, was one of the premier cracking/releasing warez groups for the IBM PC during the very late 1980s and early 90s.

Inc. Magazine, an American business magazine

The term INC could mean: