RCI may refer to one of the following.

• RCI (company), a Timeshare Exchange Company
• Racer's Choice Inc., a manufacturer of racing automotive products, Texas, USA
• Radio Canada International
• Radio Caraïbes International, a radio station in Martinique and Guadeloupe
• Radio Caribbean International, a radio station in St. Lucia
• Rapid Continuous Improvement, a process improvement practice based on the Japanese concept of Kaizen
• RCI Engineering, a manufacturer of agricultural equipment, including the Ag-Bag product line
• Rehabilitation Council of India, an Indian council for the disabled
• Renault Crédit International, former name of the French company RCI Banque
• Research Centre Imarat, an Indian defence laboratory under DRDO responsible for the development of missiles. (See IGMDP)
• Residential/Commercial/Industrial Meter - a common metric in City Building computer games
• Revival Centres International, a Pentecostal church founded in Australia
• Riverside College, Inc., a medical college in the Philippines
• Roadway Characteristics Inventory, a database containing information on roads
• Rogers Communications Inc., a Canadian communications company
• Royal Canadian Institute, an organization dedicated to the advancement of science.
• Royal Caribbean International, a cruise line based in Florida, USA