CCIR is a four-letter abbreviation that may stand for:

• California Coalition for Immigration Reform, a California political advocacy group for immigration reduction
• Campaign for Comprehensive Immigration Reform, a Washington, DC organization for immigrant rights
• Canadian Centre for Investigative Reporting, produces thoroughly researched reporting in the public interest
• Centre for Counseling Innovation and Research (CCIR), at Kish Island, Tehran, Mashhad
• Comité Consultatif International pour la Radio, a forerunner of the ITU-R
  • CCIR 601, the former name of a broadcasting standard promulgated by the CCIR
  • CCIR-tones, A selective calling system used in some radio communications systems in some European countries
  • CCIR-1k and CCIR-2k, noise weighting standards for audio signals
• Commander's critical information requirement, a term in the US military