This is a list of trade unions in Canada, broken down by affiliation.^[1]

Canadian Labour Congress

National Affiliates

• Air Canada Pilots Association
• Alliance of Canadian Cinema, Television and Radio Artists
• British Columbia Teachers' Federation
• Canadian Federation of Nurses Unions
• Canadian Office and Professional Employees Union
• Canadian Postmasters and Assistants Association
• Canadian Union of Postal Workers
• Canadian Union of Public Employees
• Directors Guild of Canada
• Elementary Teachers' Federation of Ontario
• National Union of Public and General Employees
• National Union of the Canadian Association of University Teachers
• Ontario English Catholic Teachers' Association
• Ontario Secondary School Teachers' Federation
• Professional Institute of the Public Service of Canada
• Public Service Alliance of Canada

International Affiliates

• Air Line Pilots Association, International
• Amalgamated Transit Union
• American Federation of Musicians
• Bakery, Confectionery, Tobacco Workers and Grain Millers' International Union
• Communications Workers of America
• International Alliance of Theatrical Stage Employees
• International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers
• International Association of Fire Fighters
• International Association of Heat and Frost Insulators and Allied Workers
• International Association of Machinists and Aerospace Workers
• International Association of Sheet Metal, Air, Rail and Transportation Workers
• International Brotherhood of Electrical Workers
• International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers
• International Federation of Professional and Technical Engineers
• International Longshore and Warehouse Union
• International Longshoremen's Association
• International Plate Printers, Die Stampers and Engravers' Union of North America
• International Union of Bricklayers and Allied Craftworkers
• International Union of Operating Engineers
• International Union of Painters and Allied Trades
• Laborers' International Union of North America
• Office and Professional Employees International Union
• Seafarers' International Union of North America
• Service Employees International Union
• UNITE HERE!
• United Association
• United Auto Workers
• United Food and Commercial Workers
• United Mine Workers of America
• United Steelworkers

Independent Unions/Other Affiliations

• Alberta Union of Provincial Employees
• Alliance des professeures et professeurs de Montréal
• Association des enseignantes et des enseignants franco-ontariens
• Canadian Actors' Equity Association
• Canadian Football League Players' Association
• Canadian Teachers’ Federation
• Centrale des syndicats du Québec
• Christian Labour Association of Canada
• Confédération des syndicats nationaux
• Congress of Democratic Trade Unions
• Confederation of Canadian Unions
• Fédération des travailleurs et travailleuses du Québec
• Industrial Workers of the World
• International Union of Elevator Constructors
• Major League Baseball Players Association
• Major League Soccer Players Association
• National Basketball Players Association
• National Hockey League Players' Association
• National Police Federation
• Operative Plasterers' and Cement Masons' International Association
• Professional Association of Foreign Service Officers
• Teaching Support Staff Union
• International Brotherhood of Teamsters
  • Teamsters Canada
• Writers Guild of Canada
• Unifor
• United Brotherhood of Carpenters