| Letter | Name | Languages/alphabets | Notes |
| Ә ә | | [Kazakh language|Kazakh, Tatar, Bashkir language|Bashkir, Abkhaz] | |
| ⷠ | | | |
| Ԝ ԝ | | Kurdish, Yaghnobi, Tundra Yukaghir | |
| ᲀ | | | Variant of normal ve |
| Ԁ ԁ | | Komi | |
| ᲁ | | | Variant of normal de |
| Ꙣ ꙣ | | Old Church Slavonic | |
| Ђ ђ | | Montenegrin, Serbian | |
| Ԃ ԃ | | Komi | |
| Ꚁ ꚁ | | Abkhaz | replaced by Дә |
| Є є | | Ukrainian, Khanty | |
| Ԑ ԑ | | Enets, Khanty | |
| Ѕ ѕ | | Macedonian | |
| Ꙅ ꙅ | | Old Church Slavonic, Ukrainian, Russian, Romanian | variant of Ѕ |
| Ꚅꚅ | | Abkhaz | |
| Ꙃ ꙃ | | Early Cyrillic alphabet | as variant of, and replaced by Ѕ |
| Ӡ ӡ | | Abkhaz, Uilta | |
| Ꚃ ꚃ | | Abkhaz | replaced by Ӡә |
| Ꙁ ꙁ | | Early Cyrillic alphabet | as variant of, and replaced by З |
| Ԅ ԅ | | Komi | |
| Ԇ ԇ | | Komi | |
| І і | | Belarusian, Ukrainian, Russian, Kazakh, Khakas, Komi, Rusyn | |
| Ꙇ ꙇ | | Cyrillic transcription of Glagolitic | |
| Ј ј | | Serbian, Macedonian, Montenegrin, Kildin Sami, Azerbaijani, Udmurt, Orok | |
| Ꙉ ꙉ | | Church Slavonic | Replaced by Ћ and Ђ |
| Ԉ ԉ | | Komi | |
| Ԛ ԛ | | Old Abkhaz, Kurdish | |
| ᴫ | | Uralic Phonetic Alphabet | |
| Ꙥ ꙥ | | Old Church Slavonic | |
| Ꙧ ꙧ | | Old Church Slavonic | |
| ᵸ | | Bezhta, Hunzib, Godoberi | |
| Ԋ ԋ | | Komi | |
| Ө ө | | Bashkir, Buryat, Kalmyk, Kazakh, Khanty, Kyrgyz, Tatar, Tuvan, Mongolian, Yakut, Azerbaijani (to 1991) | |
| Ꚛ ꚛ | | Old Church Slavonic | |
| Ꙩ ꙩ | | Early Cyrillic | |
| Ꙫ ꙫ | | Early Cyrillic | Exotic |
| ꙮ | | Early Cyrillic Appearance changed in Unicode 15.0. | Ex: серафими многоꙮчитїи |
| Ѻ ѻ | | Early Cyrillic | Variant of O |
| Ҁ ҁ | | Old Church Slavonic | numerical usage only |
| Ԍ ԍ | | Komi | |
| Ԏ ԏ | | Komi | |
| | | Khanty | |
| Ꚍ ꚍ | | Abkhaz | replaced by Тә |
| Ћ ћ | | Serbian | |
| Ү ү | | Kazakh, Mongolian, Karakalpak, Tatar, Bashkir, Kyrgyz, Dungan | |
| Һ һ | /, "" | Kazakh, Bashkir, Siberian Tatar, Sakha, Kalmyk | |
| Ꚕ ꚕ | | Abkhaz | replaced by Ҳә |
| Ѡ ѡ | | Early Cyrillic | |
| Ѽ ѽ | | Slavic languages | |
| Ꙍ ꙍ | | Slavic languages | |
| Ꙡ ꙡ | | Old Novgorodian birchbark | |
| Ꚏ ꚏ | | Abkhaz | replaced by Цә |
| Ҽ ҽ | | Abkhaz | |
| Џ џ | | Serbian, Macedonian, Montenegrin, Abkhazian, Romanian | |
| Ꚗ ꚗ | | Abkhaz | replaced by Шә |
| Ꙏ ꙏ | | Late Medieval Russian transcription | used when yers are indistinguishable from each other |
| Ѣ ѣ | | Early Cyrillic, Proto-Slavic, Russian, Bulgarian, Ukrainian, Rusyn | |
| Ҩ ҩ | | Abkhaz | |
| Ꙕ ꙕ | | Early East Slavic, Early Bulgarian | |
| Ӏ ӏ | | Abaza, Adyghe, Avar, Chechen, Dargwa, Ingush, Kabardian, Lak, Lezgian, Tabassaran | |
| Ѧ ѧ | | Common Slavonic, Early Cyrillic | |
| Ꙙ ꙙ | | Common Slavonic, Early Cyrillic, Middle Bulgarian | |
| Ѫ ѫ | | Common Slavonic, Early Cyrillic | |
| Ꙛ ꙛ | | Middle Bulgarian | |
| Ѯ ѯ | | Early Cyrillic, Church Slavonic, | Romanized Ks or X |
| Ѱ ѱ | | Early Cyrillic | |
| Ѳ ѳ | | Early Cyrillic | cf. Greek Θ θ |
| Ѵ ѵ | | Udmurt, Abkhaz, Russian, Serbian, Church Slavonic | |
| Ꙟ ꙟ | | Romanian | |
| Оу оу | | Early Cyrillic alphabet | |
| | | Lezgin, Dargin | |