Iris \i-ris\ as a girl's name is pronounced EYE-riss. It is of Greek origin, and the meaning of Iris is "rainbow". A flower name. Mythology: Iris was a messenger-goddess who rode rainbows between heaven and earth to deliver messages from Olympus. Novelist Iris Murdoch.
Iris has 6 variant forms: Irida, Iridiana, Iridianny, Irisa, Irisha and Irita.
For more information, see also the related name Rainbow.