O with left notch

O with left notch () is a letter of the Cyrillic script. It was used in Mstislav Aleksandrovich Kulayev's Bashkir alphabet. Its form was derived from the Cyrillic letter O with the addition of a left notch. This letter is similar to the Volapük letter Oe, but it has not been added into Unicode as a character.

This letter has not yet been encoded in Unicode. It is possible to use similar characters as a replacement.