Indo may refer to:

• The Indo- prefix indicating the Indian Subcontinent
• Indo-, prefix indicating India
  • Examples of words with Indo- prefix: Indology, Indologist, Indomania, Indophobia, Indophile, and Indo-European
• Indo people, people of mixed European and Indonesian ancestry
• INDO, the Intermediate Neglect of Differential Overlap semi-empirical method
• Indo (apple), an apple cultivar
• Irish Independent, commonly nicknamed ''The Indo''
• Cannabis (drug), known by the slang term ''endo'' or ''indo''