Ka with hook is widely used in the alphabets of Siberia and the Russian Far East: Chukchi, Koryak, Alyutor, Itelmen, Yukaghir, Yupik, Aleut, Nivkh, Ket, Tofalar and Selkup, where it represents the voiceless uvular plosive /q/.

It has been sometimes used in the Khanty language as a substitute for Cyrillic letter Ka with descender, Қ қ, which also stands for /q/.

It was also used to represent /kʰ/, the aspirated voiceless velar plosive, in the Translation Committee's Abkhaz alphabet, which was published around the turn of the 20th century, and to represent /kʼ/, the velar ejective stop, in two old Ossetian alphabets, Anders Johan Sjögren's 1844 alphabet and the Teachers' Congress's 1917 alphabet.

Other Cyrillic letters used to write the sound /q/:

This article related to the Cyrillic script is a stub.