Last name รูธ (Ruth 
, Rut 
, Ruthe 
) , around the world, is a widespread cognomen. The cognomen รูธ is habitual in Israel, where it is a common surname, Honduras, and Nicaragua (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Nigeria, Mexico, and Israel. More prevalently, รูธ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruth | Germany, Kenya, Nigeria, United States, Democratic Republic of the Congo |
| Rut | Germany, Mexico, Nigeria, United States, Democratic Republic of the Congo |
| Ruthe | Mexico, Nigeria, United States, Brazil, Democratic Republic of the Congo |
| รูธ | Thailand |