Cognomen Wilrich (Wilrich 
) , all around the world, is a very rare last name. The cognomen Wilrich is habitual in Germany, where it is a very rare surname, the United States, and Brazil, where it is an extremely rare surname. More prevalently, Wilrich is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wilrich | Brazil, United States, Democratic Republic of the Congo, Germany, South Africa |
| peter-theodor wilrich German mathematician, DE (b. 1937) |
|