- C&I stands for Commercial & Industrial
- C&I stands for Curriculum & Instruction
- C&I stands for Cost & Insurance
- C&I
- C&I stands for Creativity and Innovation
- C&I stands for Consumer and Industrial
- C&I stands for Control & Instrumentation (engineering)
- C&I stands for Construction & Installation
- C&I stands for Conference & Incentive
- C&I stands for Consulting & Integration
- C&I stands for Criteria & Indicators (sustainable forest management)
- C&I stands for Careless and Imprudent (driving offense)
- C&I stands for Complaints and Investigations Construction and Inspection
- C&I stands for Certification & Inspection
- C&I stands for Corrosion & Inspection (engineering)
- C&I stands for Camden and Islington (Mental Health Trust)
- C&I stands for Chemistry & Industry Magazine (Industrial chemistry magazine published in London)
- C&I stands for Compatibility & Interoperability
- C&I stands for Commands and Indications
- C&I stands for Contests and Incentives
- C&I stands for Checkout & Integration
- C&I stands for Concepts and Initiatives
C&I