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Last name Đao (Down
, 刀
, ដាវ
) , around the world, is a common surname. The surname Đao is characteristic of Taiwan, where it is quite a common surname, Cambodia, where it is quite a rare surname, and the United Kingdom. Not in comparison with a country's population, it is the most numerous in China, Taiwan, and the United Kingdom. Also, Đao is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Down | Myanmar, Taiwan, Indonesia, United States, United Kingdom |
| 刀 | China |
| ដាវ | Cambodia |
| Đao | Vietnam |