| ⓞ | Circled Latin Small Letter O Symbol |
| ⒪ | Parenthesized Latin Small Letter O Symbol |
| ☹ | White Frowning Face Symbol |
| ☺ | White Smiling Face Symbol |
| ☻ | Black Smiling Face Symbol |
| ✪ | Circled White Star Symbol |
| ☮ | Peace Symbol |
| ✺ | Sixteen Pointed Asterisk Symbol |
| ☼ | White Sun With Rays Symbol |
| ♨ | hot springs Symbol |
| ☢ | Radioactive Sign Symbol |
| ☀ | Black Sun With Rays Symbol |
| ⍥ | Apl Functional Symbol Circle Diaeresis Symbol |
| ṍ | Latin Small Letter O With Tilde And Acute Symbol |
| ṏ | Latin Small Letter O With Tilde And Diaeresis Symbol |
| ṑ | Latin Small Letter O With Macron And Grave Symbol |
| ṓ | Latin Small Letter O With Macron And Acute Symbol |
| ọ | Latin Small Letter O With Dot Below Symbol |
| ỏ | Latin Small Letter O With Hook Above Symbol |
| ố | Latin Small Letter O With Circumflex And Acute Symbol |
| ồ | Latin Small Letter O With Circumflex And Grave Symbol |
| ổ | Latin Small Letter O With Circumflex And Hook Above Symbol |
| ỗ | Latin Small Letter O With Circumflex And Tilde Symbol |
| ớ | Latin Small Letter O With Horn And Acute Symbol |
| ờ | Latin Small Letter O With Horn And Grave Symbol |
| ở | Latin Small Letter O With Horn And Hook Above Symbol |
| ỡ | Latin Small Letter O With Horn And Tilde Symbol |
| ợ | Latin Small Letter O With Horn And Dot Below Symbol |
| ὀ | Greek Small Letter Omicron With Psili Symbol |
| ὁ | Greek Small Letter Omicron With Dasia Symbol |
| ὂ | Greek Small Letter Omicron With Psili And Varia Symbol |
| ὃ | Greek Small Letter Omicron With Dasia And Varia Symbol |
| ὄ | Greek Small Letter Omicron With Psili And Oxia Symbol |
| ὅ | Greek Small Letter Omicron With Dasia And Oxia Symbol |
| ộ | Latin Small Letter O With Circumflex And Dot Below Symbol |
| o | Latin Small Letter O Symbol |
| Ṍ | Latin Capital Letter O With Tilde And Acute Symbol |
| Ṏ | Latin Capital Letter O With Tilde And Diaeresis Symbol |
| Ṑ | Latin Capital Letter O With Macron And Grave Symbol |
| Ṓ | Latin Capital Letter O With Macron And Acute Symbol |
| Ọ | Latin Capital Letter O With Dot Below Symbol |
| Ỏ | Latin Capital Letter O With Hook Above Symbol |
| Ố | Latin Capital Letter O With Circumflex And Acute Symbol |
| Ồ | Latin Capital Letter O With Circumflex And Grave Symbol |
| Ổ | Latin Capital Letter O With Circumflex And Hook Above Symbol |
| Ỗ | Latin Capital Letter O With Circumflex And Tilde Symbol |
| Ộ | Latin Capital Letter O With Circumflex And Dot Below Symbol |
| Ớ | Latin Capital Letter O With Horn And Acute Symbol |
| Ờ | Latin Capital Letter O With Horn And Grave Symbol |
| Ở | Latin Capital Letter O With Horn And Hook Above Symbol |
| Ỡ | Latin Capital Letter O With Horn And Tilde Symbol |
| Ợ | Latin Capital Letter O With Horn And Dot Below Symbol |
| Ὀ | Greek Capital Letter Omicron With Psili Symbol |
| Ὁ | Greek Capital Letter Omicron With Dasia Symbol |
| Ὂ | Greek Capital Letter Omicron With Psili And Varia Symbol |
| Ὃ | Greek Capital Letter Omicron With Dasia And Varia Symbol |
| Ὄ | Greek Capital Letter Omicron With Psili And Oxia Symbol |
| O | Latin Capital Letter O Symbol |
