Surname Sihwa (Sihwa 
) , in the entire world, is a rare family name. The surname Sihwa is characteristic of Zimbabwe, where it is quite a rare surname, South Africa, where it is a very rare surname, and the United Kingdom. Much less frequently, Sihwa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sihwa | South Korea, United Kingdom, United States, South Africa, Zimbabwe |