Gaudium may refer to :
- Gaudium et Spes, the Pastoral Constitution on the Church in the Modern World, was one of the principal documents of the Second Vatican Council.
- 8061 Gaudium is a Main-belt Asteroid discovered on October 27, 1975 by P. Wild at Zimmerwald.
- Gaudium is a type of internal sin, i.e. dwelling with complacency on sins already committed.