IN, In or in may refer to:
The International Standard Book Number (ISBN) is a numeric commercial book identifier which is intended to be unique.
India (official name: the Republic of India; Hindi: Bhārat Gaṇarājya) is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world.
Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod phylum.
Indonesia ( (listen) IN-də-NEE-zhə, -NEE-zee-ə; Indonesian: [ɪndoˈnesia]), officially the Republic of Indonesia (Indonesian: Republik Indonesia [reˈpublik ɪndoˈnesia]), is a country in Southeast Asia, between the Indian and Pacific oceans.
An International Standard Serial Number (ISSN) is an eight-digit serial number used to uniquely identify a serial publication, such as a magazine.
The Internet (portmanteau of interconnected network) is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide.
Instagram (also known as IG or Insta) is a photo and video-sharing social networking service owned by Facebook, Inc.
The India men's national cricket team, also known as Team India and Men in Blue, is governed by the Board of Control for Cricket in India (BCCI), and is a Full Member of the International Cricket Council (ICC) with Test, One-Day International (ODI) and Twenty20 International (T20I) status.