Idi is a Pahoturi language spoken in Western Province, Papua New Guinea.

[1] The language has been also known as Diblaeg, Dibolug, Dimisi, Dimsisi.

[1] Idi is in contact with other Papuan languages of different families, including Nen, Nambo, and the closely related Agob.

[1] Idi phonemic inventory:[3][4] Idi has elaborate verbal morphology, including complex marking of verbal number.

[5] Other noteworthy features, which it shares with other Pahoturi River languages, are the high frequency of analytic constructions (consisting of an uninflecting form plus an inflected auxiliary) in addition to directly inflected verbs, and an elaborate inventory of copulas.