Conductor

The term conductor may refer to:
* Conductor (music), the person responsible for directing a musical performance
* Conductor (physics), a medium that conducts electricity, heat, or sound
** Plasma conductor, a conductor of plasma
** Positronic conductor, a conductor of positrons
** Voice-transit conductor, a type of sound conductor
* Conductor (rail), the person responsible for directing passengers on a train
** Moon shuttle conductor
** Test conductor, a title held by a Starfleet officer