Family name Lourensius (Lourensius 
) , around the globe, is a rare surname. The family name Lourensius is habitual in Indonesia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Also, Lourensius is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lourensius | United States, India, Indonesia |