The most common full form of ICC is International Cricket Council.

Since you didn’t give a specific context, here are the main meanings people usually refer to:

  1. International Cricket Council – Global governing body for the sport of cricket, in charge of international rules, tournaments like the Cricket World Cup, and overall regulation of the game.
  1. International Criminal Court – An independent court in The Hague that investigates and prosecutes serious international crimes such as genocide, war crimes, and crimes against humanity.
  1. International Chamber of Commerce – A worldwide business organization that promotes international trade and helps set rules, standards, and best practices for global commerce.

If your question is from a general knowledge or cricket exam, the expected answer is almost always International Cricket Council.

TL;DR:

  • Default/general exam answer: International Cricket Council (ICC).
  • Law/international justice context: International Criminal Court.
  • Business/trade context: International Chamber of Commerce.

Information gathered from public forums or data available on the internet and portrayed here.