Iris can mean:
- The sphincter around the pupil of the eye, see iris (anatomy)
- The equivalent device in a camera, see iris (camera)
- The messenger of the gods in Greek mythology, see Iris (mythology)
- A variety of flower, see iris (plant)
- A movie by Richard Eyre, about Iris Murdoch, see Iris (2001)
- A Dutch comic magazine, see Iris magazine
- A female first name
- An romanian hevy-metal/hard-rock band IRIS