Ο Greek Capital Letter Omicron
U+039F
Ο
ℹ️ About
The Greek Capital Letter Omicron (Ο, U+039F) is the 15th letter of the Greek alphabet. While visually identical to the Latin uppercase ‘O’, it is a distinct character within the Greek and Coptic Unicode block. In mathematics, it is historically related to Big O notation, though modern typesetting typically uses the Latin ‘O’.
⚠️ Note: Do not confuse with O (Latin Capital Letter O).
⚡ Codes
HTML
Ο
CSS
\039F
Python
\u039F
Live Playground
More from Greek and Coptic
Copied!