| Birth Date: | 19 March 1918 |
| Birth Place: | Saint-Pierre-lès-Nemours, Seine-et-Marne, France |
| Death Date: | 12 July 1983 (aged 65) |
| Death Place: | Rucphen, the Netherlands |
| Sport: | Field hockey |
| Club: | DHV, Deventer |
| Show-Medals: | yes |
Henri "Harry" Jean Joseph Derckx (19 March 1918 – 12 July 1983) was a Dutch field hockey player who competed at the 1948 and 1952 Summer Olympics as back. In 1948, he played all seven matches for the Dutch team that won the bronze medal. Four years later he again played all matches and won the silver medal.