Last name Willium (Willium 
) , worldwide, is quite a common family name. The family name Willium is characteristic of Tanzania, where it is quite a rare surname, Bangladesh, where it is a very rare surname, and Myanmar. Not in comparison with a country's population, this name is the most popular in Tanzania, Bangladesh, and Pakistan. Also, Willium is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Willium | Bangladesh, India, Pakistan, Myanmar, Tanzania |