| Cees Jan Diepeveen | |
| Birth Place: | Amsterdam, North Holland |
| Headercolor: | lightsteelblue |
| Show-Medals: | yes |
Cees Jan Diepeveen (born July 24, 1956 in Amsterdam, North Holland) is a former field hockey player from the Netherlands, who participated in three Summer Olympics: in Los Angeles (1984), in Seoul (1988) and finally in Barcelona (1992). In 1988 he was a member of the team that won the bronze medal in South Korea, after defeating Australia (2-1) in the Bronze Medal Game.