IN, In or in may refer to:
The International Standard Book Number (ISBN) is a unique numeric commercial book identifier. Publishers purchase ISBNs from an affiliate of the International ISBN Agency.
India (IAST: Bhārat), also called the Republic of India (IAST: Bhārat Gaṇarājya), is a country in South Asia.
Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod phylum.
Indonesia ( ( listen) IN-də-NEE-zhə or IN-doh-NEE-zee-ə; Indonesian: [ɪndonesia]), officially the Republic of Indonesia (Indonesian: Republik Indonesia [rɛpublik ɪndonesia]), is a transcontinental unitary sovereign state 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.
The India national football team represents India in international football and is controlled by the All India Football Federation.
The indigenous peoples of the Americas are the pre-Columbian peoples of the Americas and their descendants.