| Agatha Baas-Jansen | |
| Office: | Dutch House of Representatives |
| Term Start: | May 1988 |
| Term End: | September 1989 |
| Primeminister: | Wim Kok |
| Nationality: | Dutch |
| Spouse: | Dick Baas |
| Party: | Christian Democratic Appèl |
| Occupation: | Police officer |
Agatha Baas-Jansen, or better known as Ada Jansen, (born 5 July 1942) is a Dutch police officer and politician.
Jansen was in the police in Nijmegen when she became interested in the care of those with mental disabilities and undertook related studies. Until 1980 she was in the Anti-Revolutionary Party, but on 11 October she joined the Christian Democratic Appèl.
From May 1988 to September 1989, she was elected to the House of Representatives.[1] She assisted with police related matters, emancipation, minorities and in particular with that of Chinese people in the Netherlands.[2]
Her husband, Dick Baas, was an alderman of Nunspeet.[2]