Surname 奧圖 (Otto 
, Oto 
, O'Toole 
) , throughout the world, is a widespread cognomen. The surname 奧圖 is habitual in British Virgin Islands, where it is a common surname, Antigua and Barbuda, and Liechtenstein, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in Germany, the United States, and South Africa. Likewise, 奧圖 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Otto | Brazil, Guatemala, United States, Japan, Germany |
| Oto | Brazil, Guatemala, United States, Germany, Czechia |
| O'Toole | Philippines, Australia, South Africa, United States, Germany |