Surname Bö (Bui 
, By , Boe 
) , across the world, is a widespread last name. The family name Bö is habitual in Vanuatu, where it is a common surname, Macao, and Vietnam, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Vietnam, the United States, and Indonesia. Much less frequently, Bö is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| By, Bui | Vietnam, United States, India, Indonesia, Malaysia |
| Boe | Myanmar, France, United States, Indonesia, Malaysia |
| Bö | Myanmar, Germany, Egypt, United States, Algeria |