The pupil is the variable-sized, black opening in the centre of the iris.
Pupil may also refer to:
Student Pupillage, a trainee barrister (England and Wales) Entrance pupil, the optical image of the aperture stop, as 'seen' through the front of a lens system Exit pupil, the image of the aperture stop in the optics that follow it Pupil (band), a Filipino rock band The Pupil (short story), 1891 short story by Henry James The Pupil (TV series), 2010 Singaporean drama series