O horn
Latin Capital Letter O with Horn · U+01A0
Ơ is the capital O with a horn, the uppercase form of ơ (U+01A1). It is a distinct vowel of the Vietnamese alphabet, and Vietnamese tone marks stack on it to form characters like Ớ and Ợ. It appears at the start of sentences and in all-capitals Vietnamese text. Click the tile to copy Ơ, then paste it anywhere with Ctrl+V (Windows), Cmd+V (Mac) or a long-press → Paste on a phone.
Ơ codes
Every way to reference Ơ in text and code. Click the character or any chip to copy it.
| Format | Code | Used in |
|---|---|---|
| Character | Copy it once, paste it anywhere | |
| Unicode code point | The character's official ID in the Unicode standard | |
| HTML entity | Web pages and HTML source code | |
| Windows Alt code | — | No classic Alt code — use the Word Alt+X method below |
How to type Ơ
Ơ is not printed on most English keyboards, but every device hides a shortcut for it. Pick your platform:
Windows
- In Microsoft Word, type the hexadecimal code point — 01A0 for Ơ.
- Press Alt+X: the code converts into the character in place.
Tip: Ơ has no classic Windows Alt code. Outside Word, press Win + . to open the emoji panel and look under its Symbols tab — or copy the character straight from this page, which is fastest of all.
Mac
- Press Control + Command + Space to open the Character Viewer.
- Search for "Latin Capital Letter O with Horn" and double-click it to insert.
Tip: The Character Viewer is the reliable route — or copy the character straight from this page.
iPhone & Android
- Long-press pop-ups on iPhone, iPad and Android don't cover Ơ.
- Fastest route on a phone: tap the big Ơ tile above to copy it, then long-press the text field and choose Paste.
Tip: Copying from this page works on every phone — no keyboard settings needed.
Copy-paste is a typing method too — every accented form of O copies in one click on the O with accent page, alongside the full typing guides.
Customize Ơ
Style the symbol your way — pick colors, size and shape, then copy the HTML snippet or download a square PNG/SVG (transparent background supported).
More O with accent
