Surname Willyanto (Willyanto 
) , in the world, is quite a rare last name. The last name Willyanto is characteristic of Indonesia, where it is a rare surname, Switzerland, and Australia, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Indonesia, Switzerland, and China. Likewise, Willyanto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Willyanto | Switzerland, Indonesia, China, Australia |