| Acronym | Definition |
|---|
| WCA➣Willow Creek Association |
| WCA➣Water Contact Angle (surface science) |
| WCA➣World Cube Association (Rubik's Cube) |
| WCA➣Women's Caucus for Art |
| WCA➣World Cargo Alliance (est. 1998) |
| WCA➣Wireless Communications Association International |
| WCA➣World Chiropractic Alliance |
| WCA➣Water Conservation Area |
| WCA➣Wireless Communications Association |
| WCA➣World Cheese Awards (consumer food show) |
| WCA➣Wireless Communications Alliance (non-profit; Northern California) |
| WCA➣Wildlife Conservation Area (various locations) |
| WCA➣Whalley Computer Associates |
| WCA➣Workmen's Compensation Act (various nations) |
| WCA➣Worst Case Analysis |
| WCA➣Workers' Compensation Administration |
| WCA➣World Championships in Athletics (International Association of Athletics Federations) |
| WCA➣World Clown Association |
| WCA➣Waste Collection Authority (UK) |
| WCA➣Wind Correction Angle (aviation) |
| WCA➣Wollongong College Australia (University of Wollongong) |
| WCA➣Western and Central Africa |
| WCA➣World Cheerleading Association |
| WCA➣Wisconsin Cycling Association |
| WCA➣Woodlands Community Association (various locations) |
| WCA➣Wildlife & Countryside Act 1981 |
| WCA➣West Coast Angler (fishing resource) |
| WCA➣Women in Corporate Aviation (Southhaven, Mississippi, USA) |
| WCA➣Women Contractors Association |
| WCA➣Weingart Center Association (Los Angeles, CA) |
| WCA➣Washington Council of Agencies |
| WCA➣Wireless Consumers Alliance |
| WCA➣Weighted Combined Algorithm (computing) |
| WCA➣Washtenaw Christian Academy (Saline, Michigan) |
| WCA➣Wireless Cable Association International |
| WCA➣Washington Correctional Association |
| WCA➣Washington Counseling Association |
| WCA➣Waveform Concatenation Approach (speech synthesis development tool) |
| WCA➣Wing Chun Archive (martial arts) |
| WCA➣Wool Council of Australia |
| WCA➣Water Clearance Authority |
| WCA➣Weighted Critical Area |
| WCA➣Willow Creek Academy (Sausalito, CA) |
| WCA➣Warranty Claim Action |
| WCA➣Warner Christian Academy (South Daytona, FL) |
| WCA➣Weighted Curvature Approximation |
| WCA➣Whole Core Accident |
| WCA➣Water Commodity Adjustment |
| WCA➣Warning, Caution, and Advisory (aviation) |
| WCA➣Warhorse Challenge Association |
| WCA➣Women Christian Association (USA) |
| WCA➣Winter Cities Association (Canada) |
| WCA➣Weed Control Act (Canada) |
| WCA➣Wing Correction Angle (aviation) |
| WCA➣Waste Combustion Air |
| WCA➣Weapons Coverage Area (US Navy) |
| WCA➣Weapons Control System Alignment Procedures |
| WCA➣Workforce Cultural Audit |
| WCA➣Warning, Control Advisories (avionics monitoring flags) |