Koos de Haas | |
Nationality: | Dutch |
Sport: | Rowing |
Birth Date: | 10 September 1889 |
Birth Place: | Amsterdam, Netherlands |
Death Place: | The Hague, Netherlands |
Koos de Haas (10 September 1889 - 30 September 1966) was a Dutch rower.[1] He competed in the men's double sculls event at the 1920 Summer Olympics.[2]