| Acronym | Definition |
|---|
| WCI | Western Climate Initiative |
| WCI | Wind Chill Index (meteorology) |
| WCI | Working Certificate Intermediate |
| WCI | Winners Chapel International (Living Faith Church Worldwide) |
| WCI | World Certification Institute (est. 2003; Washington, DC) |
| WCI | White Consolidated Industries (est. 1964) |
| WCI | Webcenter Interaction (software) |
| WCI | Walnut Creek Intermediate (Walnut Creek, CA) |
| WCI | Winship Cancer Institute (Emory University; Atlanta, GA) |
| WCI | Western Culinary Institute (Portland, OR) |
| WCI | Whale Conservation Institute |
| WCI | Warren Correctional Institution (Warren, OH) |
| WCI | Worker's Compensation Insurance (labor force coverage) |
| WCI | Wright Center of Innovation |
| WCI | Waterloo Collegiate Institute |
| WCI | Warrior Concepts International |
| WCI | Wound Care Institute |
| WCI | Woodstock Collegiate Institute |
| WCI | Wahlin Communications Inc (Pelham Manor, NY) |
| WCI | World Class Initiative (various organizations) |
| WCI | Westinghouse Communities, Inc. |
| WCI | Women in Computational Intelligence (IEEE Computational Intelligence Society) |
| WCI | Wealth Creation Index |
| WCI | World Concern International |
| WCI | Work Centered Interface |
| WCI | White-Light Coronagraphic Imager |
| WCI | Walkable Communities, Inc. |
| WCI | Westbridge Communication Inc (Edmonton, AB, Canada) |
| WCI | Worst Credible Incidents (risk management assessment factor) |