IN, In or in may refer to:
The International Standard Book Number (ISBN) is a unique numeric commercial book identifier.
India, officially the Republic of India (Bhārat Gaṇarājya), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country (with over 1.2 billion people), and the most populous democracy in the world.
Insects or Insecta (from Latin insectum, a calque of Greek ἔντομον [éntomon], "cut into sections") are by far the largest group of hexapod invertebrates within the arthropod phylum.
Indonesia ( IN-də-NEE-zhə or IN-doh-NEE-zee-ə; Indonesian: [ɪndonesia]), officially the Republic of Indonesia (Indonesian: Republik Indonesia [rɛpublik ɪndonesia]), is a unitary sovereign state and transcontinental country located mainly in Southeast Asia, with some territories in Oceania.
The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide.
An independent or nonpartisan politician is an individual politician not affiliated with any political party.
Insane Clown Posse (ICP) is an American hip hop duo composed of Violent J (Joseph Bruce) and Shaggy 2 Dope (originally 2 Dope; Joseph Utsler).