Family name Abacu (Abacu 
) , in the world, is a rare surname. The last name Abacu is habitual in Latin America and the Caribbean, particularly Mexico, where it is a rare surname, Honduras, where it is a very rare surname, and Nicaragua. Measured by absolute frequency, it most frequently occurs in Mexico, Pakistan, and Honduras. Likewise, Abacu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Abacu | Pakistan, Honduras, Nicaragua, Mexico, United States |