I with diaeresis (Cyrillic)

I with diaeresis (Ӥ ӥ; italics: Ӥ ӥ) is a letter of the Cyrillic script. It is used in the Udmurt language, where it represents the close front unrounded vowel /i/, and is used only after the non-palatalized dentals /d/, /z/, /l/, /n/, /s/ and /t/; the Cyrillic letter I (Ии) is used otherwise.

It is also used in the Ukrainian language, in some books and texts.