| Ancienne Douane | |
| Native Name: | gsw-FR|Koïfhus |
| Building Type: | customs house |
| Architectural Style: | Gothic Renaissance |
| Location: | Colmar, France |
| Address: | 29, Grand′Rue Place de l′Ancienne Douane |
| Owner: | Municipality of Colmar |
| Coordinates: | 48.0758°N 7.3589°W |
| Completion Date: | 1480 late 16th/early 17th century |
| Renovation Date: | 1895–1898 2002 |
Ancienne Douane ("Old Custom house"), also known as Koïfhus, is a Gothic and Renaissance building in Colmar, France. It is classified as a monument historique by the French Ministry of Culture since 1930. It is also the birthplace of general Jean Rapp.
The building currently houses a restaurant as well as temporary exhibitions and fairs.