| O with horn | |
| Script: | Latin script |
| Language: | Vietnamese |
| Phonemes: | [{{IPAlink|ə}}] |
| Variations: | O+, O* |
| Sisters: | Ờờ, Ớớ, Ởở, Ỡỡ, Ợợ |
| Directon: | Left to Right |
| Fam1: | O o |
| Type: | alphabet |
| Typedesc: | ic |
| Letter: | Ơ ơ |
Ơ (lowercase ơ) is one of the 12 Vietnamese language vowels. It is pronounced pronounced as /link/.[1]
As with most special Vietnamese letters, this letter is not well-supported by fonts and is often typed as either o+ or o*. The VIQR standard is o+.
On the Windows default Vietnamese keyboard Ơ can be found on where the ] key is on a US English keyboard layout.
Because Vietnamese is a tonal language this letter may optionally have any one of the five tonal symbols above or below it.