Field theory

Field theory may refer to:

Science

 * Field (mathematics), the theory of the algebraic concept of field
 * Field theory (physics), a physical theory which employs fields in the physical sense, consisting of three types:
 * Classical field theory, the theory and dynamics of classical fields
 * Quantum field theory, the theory of quantum mechanical fields
 * Statistical field theory, the theory of critical phase transitions
 * Grand unified theory

Social science

 * Field theory (psychology), a psychological theory which examines patterns of interaction between the individual and his or her environment
 * Field theory (sociology), a sociological theory concerning the relationship between social actors and local social orders