Social activity may refer to:
- Agency (sociology), the individual (or 'micro') component of the structure and agency debate
- Agency (philosophy), the similar but distinct concept in philosophical action theory
- Social relations, the fundamental topic of analysis for social scientists
- Interpersonal relationship
- Social action, a Weberian concept in sociology relating to social 'actors' and their causes and effects
- Human migration, the movement of human beings from one area to another