What term describes a lawsuit brought by one person on behalf of a larger group?

In the realm of law, when a single individual initiates legal proceedings not just for themselves, but for a multitude of others who have suffered similar harm from the same entity, the term that describes this collective effort is a class action. Rather than each person filing separate lawsuits, which can be inefficient and costly, a class action consolidates these numerous, similar claims into one powerful case. This approach is particularly vital when individual damages might be too small to justify a standalone lawsuit, but collectively represent significant wrongdoing.

The primary purpose of a class action lawsuit is to provide access to justice for a large group of individuals, known as the "class," who have been affected by the same negligent product, environmental hazard, discriminatory practice, or other widespread misconduct. By combining resources and claims, class actions enable individuals to hold large corporations, manufacturers, or other powerful entities accountable, even when their individual losses are minimal. This also promotes judicial efficiency by resolving many claims in a single proceeding, ensuring consistent outcomes and deterring future wrongdoing.

Originating in the United States in the late 19th and early 20th centuries, class actions are a significant legal tool that continues to be predominantly American, though other countries have adopted similar mechanisms. Common types of class action lawsuits include those related to defective products, consumer fraud, employment discrimination, environmental issues, and securities violations. While a representative plaintiff leads the case, the outcome of a successful class action lawsuit, whether a settlement or judgment, typically benefits all eligible class members.