Surname Blackwoo (Blackwoo 
) , all around the world, is a very rare last name. The surname Blackwoo is habitual in the United Kingdom, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Blackwoo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Blackwoo | United States, United Kingdom |