Cognomen Hooo (Hooo 
) , around the globe, is a very rare family name. The cognomen Hooo is habitual in Hong Kong, where it is a rare surname, the United Kingdom, where it is an extremely rare surname, and China. Not in comparison with a country's population, it most frequently occurs in China, Hong Kong, and India. Much less frequently, Hooo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hooo | China, United States, United Kingdom, India, Hong Kong |