Worldwide, Ridolf (Ridolf 
) is a rare boy's first name. The first name Ridolf is characteristic of South-eastern Asia, particularly Indonesia, where it is a rare masculine name. Much less frequently, Ridolf is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ridolf | Germany, Indonesia, United States, India, Brazil |
| ridolf sianturi Indonesian politician (born 1962 in Sei Bamban), ID (b. 1962) |
|