In organized labor, a hiring hall is an organization, usually under the auspices of a labor union, which has the responsibility of furnishing new recruits for employers who have a collective bargaining agreement with the union.

The employer's use of the hiring hall may be voluntary or it may be compulsory as per the terms of the employer's contract with the union (or, in a few cases, the labor laws of the jurisdiction in question). Compulsory use of a hiring hall effectively turns the employer into a closed shop because an employee must join the union before (s)he can be hired. Since closed shops are illegal in the United States, all hiring halls in that country presumably operate on a voluntary basis. By contrast, the prevalence of compulsory hiring hall arrangements in Canada varies from trade to trade and from province to province, since labor law there is under provincial jurisdiction. The situation in Europe also varies from country to country.

The presence of a hiring hall places the responsibility on the union to ensure that its members are suitably qualified and responsible individuals before assigning them to an employer. The union will often enforce a basic code of conduct amongst its members to ensure smooth operation of the hiring hall (to prevent members from double booking, for example). If a hiring hall is reputable, the relationship between the union and the employer can be relatively harmonious. Many employers, particularly those who require skilled tradespeople, prefer to voluntarily use the services of a reputable hiring hall rather than attempt to find qualified, responsible recruits on their own.

Hiring halls are generally most prevalent in skilled trades and where employers need to find qualified recruits on short notice.