Family name ルート (Ruud 
, Root 
, Lute ) , around the globe, is a common surname. The surname ルート is characteristic of Norway, where it is a common surname, the United States, where it is quite a rare surname, and Netherlands. In absolute terms, this name is the most popular in the United States, India, and Norway. Much less frequently, ルート is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruud | Norway, Democratic Republic of the Congo, United States, India, Netherlands |
| Root | Germany, United Kingdom, United States, India, Netherlands |
| Lute | Norway, United Kingdom, United States, India, Netherlands |
| ルート | Japan |