| Han Dekker | |
| Nationality: | Dutch |
| Sport: | Rowing |
| Birth Date: | 4 June 1913 |
| Birth Place: | Delft, Netherlands |
| Death Place: | Zeist, Netherlands |
Johannes Adriaan Dekker (4 June 1913 – 20 January 2000) was a Dutch rower. He competed in the men's coxless four event at the 1948 Summer Olympics.[1]