| 哦 |  ò | oh (interjection indicating that one has just learned sth) |   |
| 哦 | ó | oh (interjection indicating doubt or surprise) | |
| 咳 | hāi | sound of sighing / (interjection expressing surprise, sorrow, regret, disappointment etc) oh / damn / wow | |
| 喔 | ō | I see / oh | |
| 唔 | wú | oh (expression of agreement or surprise) / (Cantonese) not | |
| 譆 | xī | oh (denoting fright) | |
| 啊哟 | ā yo | interjection of surprise or pain / Oh / Ow / My goodness! | |
| 对了 | duì le | Correct! / Oh, that's right, ... (when one suddenly remembers sth one wanted to mention) / Oh, by the way, ... | |
| 完了 | wán le | to be finished / to be done for / ruined / gone to the dogs / oh no | |
| 乖乖 | guāi guai | goodness gracious! / oh my lord! | |
| 糟了 | zāo le | gosh! / oh no! / darn! | |
| 啊呀 | ā yā | interjection of surprise / Oh my! | |
| 好家伙 | hǎo jiā huo | my God! / oh boy! / man! | |
| 哇靠 | wā kào | (lit.) I cry! / Oh, bosh! / Shoot! / (from Taiwanese 我哭, Tai-lo pr. [goá / khàu]) | |
| 哎呦 | āi yōu | (interjection of surprise, pain, annoyance etc) / Oh my! / Uh-oh! / Ah! / Ouch! | |
| 啊 | ā | interjection of surprise / Ah! / Oh! | |
| 啊 | à | interjection or grunt of agreement / uhm / Ah, OK / expression of recognition / Oh, it's you! | |
| 於 | wū | (literary) Oh! / Ah! | |
| 唉 | ài | alas / oh dear | |
| 噢 | ō | Oh! | |
| 哟 | yō | Oh! (interjection indicating slight surprise) | |
| 嗨 | hāi | oh alas / hey! / hi! (loanword) / a high (natural or drug-induced) (loanword) | |
| 唷 | yō | (interjection expressing surprise) Oh! / My! | |
| 嗬 | hē | (interjection expressing surprise) oh! / wow! | |
| 呦 | yōu | Oh! (exclamation of dismay etc) / see 呦呦[you1 you1] | |
| 嚄 | huò | (interj.) oh! | |
| 唵 | ǎn | (interjection) oh! / (dialect) to stuff sth in one's mouth / (used in buddhist transliterations) om | |
| 那倒是 | nà dào shi | Oh that's true! (interjection of sudden realization) | |
| 坏了 | huài le | shoot! / gosh! / oh, no! / (suffix) to the utmost | |
