Worldwide, รุทธ์ (Rut 
, รุทธ์ 
) is a common female first name. The first name รุทธ์ is habitual in Israel, where it is a common female name, Iceland, where it is quite a common female name, and Equatorial Guinea, where it is quite a rare female name. In absolute terms, this name is the most popular in Israel, India, and Indonesia. Much less frequently, รุทธ์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rut | Indonesia, Mexico, Israel, Spain, India |
| รุทธ์ | Thailand |
รุทธ์ is also a name for the fictitious and mythical characters: Ruth , the protagonist of the Book of Ruth in the Hebrew Bible and Rut , the musical character in the musical The Gay Parisienne by Ivan Caryll; Honeycomb's servant.