WCA

WCA may refer to:

Schools

 * Waterbury Career Academy, public high school in Waterbury, Connecticut
 * Wake Christian Academy, private Christian school in Raleigh, North Carolina
 * Washington Christian Academy, private Christian school in Silver Spring, Maryland
 * Wesleyan Christian Academy, private school in High Point, North Carolina
 * Westminster Christian Academy (Missouri), private school in Town and Country, Missouri
 * Wildwood Catholic Academy, private school in North Wildwood, New Jersey

Governing and political bodies

 * Waste collection authority, local authority charged with collecting waste in the United Kingdom
 * Welsh Canoeing Association, governing body for canoeing and kayaking in Wales
 * World Clown Association, governing worldwide clowning
 * World Cube Association, governing Rubik's Cube competitions
 * World Council of Arameans, governing the Arameans worldwide

Professional associations

 * World Chiropractic Alliance, agency which involves itself in chiropractic matters

Technical

 * Water cascade analysis
 * Weakly coordinating anion, or non-coordinating anion

Other

 * World Constituent Assembly, 1968 meeting of world delegates
 * Wesleyan Covenant Association, an organization associated with the Global Methodist Church
 * Western Canada Airways Ltd., a defunct Canadian airline of the 1920s and 1930s
 * West Caribbean Airways, a Colombian airline
 * Wikimedia Chapters Association, an organization that coordinates works of all Wikimedia chapters
 * Wind Correction Angle, used in aeronautical navigation
 * Work Capability Assessment, an approach to judging an unemployed person's suitability for work, England, present.
 * World Coal Association, previously known as World Coal Institute
 * World Combat Arts, valuing all martial styles, traditions and arts with equal esteem. Particular expertise in competitive kickboxing, sport boxing, K1 rules and muay thai.
 * World Combat Association, an international forum and network for martial arts instructors who emphasize practicality in their art.
 * World Counter-terrorism Agency, a fictional organization appearing in Marvel Comics
 * World Cube Association, the world speedcubing association