Olthuis is a Dutch surname. Notable people with the surname include:
- James Olthuis, philosopher
- Koen Olthuis, architect and designer of the Amphibious House
- Marja-Liisa Olthuis (born 1967), Inari Sámi researcher, author and language activist
This page lists people with the surname Olthuis.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.