Surname Отоо (Otoo 
, Отоо) , in the world, is a common last name. The family name Отоо is characteristic of Ghana, where it is a common surname, Aland Islands, where it is quite a common surname, and Qatar, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Ghana, the United States, and the United Kingdom. Very seldom, Отоо is the forename as well as the last name.