|Cyrillic letter O with left notch|
|The Cyrillic script|
|Archaic or unused letters|
O with left notch (Ꞝ, ꞝ) 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.