Generosity (also called largess or largesse) is the habit of giving without expecting anything in return. It can involve offering time, assets or talents to aid someone in need. Often equated with charity as a virtue, generosity is widely accepted in society as a desirable trait. In times of natural disaster, relief efforts are frequently provided, voluntarily, by individuals or groups acting unilaterally in making gifts of time, resources, goods, money, etc.

Generosity is a guiding principle for many registered charities, foundations and non-profit organizations. Generosity can also be spending time, money, or labor for others without being rewarded in return.