| Birth Date: | 14 August 1962 |
| Birth Place: | Velden, Netherlands |
| Occupation: | Politician |
| Party: | Christian Democratic Appeal |
| Office: | Member of the House of Representatives |
| Term Start: | 23 May 2002 |
| Term End: | 19 September 2012 |
| Birth Name: | Gerardus Peter Jan Koopmans |
Gerardus Peter Jan (Ger) Koopmans (born 14 August 1962 in Velden) is a former Dutch politician. A member of the Christian Democratic Appeal (Christen-Democratisch Appèl), he was an MP from 23 May 2002 to 19 September 2012. He focused on matters of agriculture, conservation, food safety and governmental organization.
He served as chairman of the National Board of Scouting Nederland from 2006 until 2011, and he became chairman of the Netherlands Agricultural and Horticultural Association (LTO Nederland) in March 2024.[1]