| Jan Klijnjan | |
| Fullname: | Johannes Teunis Klijnjan |
| Birth Date: | 26 February 1945 |
| Birth Place: | Papendrecht, Netherlands |
| Death Place: | Dordrecht, Netherlands |
| Height: | 1.76 m |
| Position: | Midfielder, striker |
| Years1: | 1963–1968 |
| Clubs1: | Dordrecht |
| Years2: | 1968–1973 |
| Clubs2: | Sparta Rotterdam |
| Caps2: | 144 |
| Goals2: | 54 |
| Years3: | 1973–1976 |
| Clubs3: | Sochaux |
| Caps3: | 104 |
| Goals3: | 17 |
| Years4: | 1977–1979 |
| Clubs4: | Dordrecht |
| Caps4: | 45 |
| Goals4: | 8 |
| Nationalyears1: | 1967–1972 |
| Nationalteam1: | Netherlands |
| Nationalcaps1: | 11 |
| Nationalgoals1: | 2 |
Jan Klijnjan (26 February 1945 – 15 June 2022)[1] was a Dutch professional footballer.
He played as a midfielder or striker. He made 11 appearances scoring 2 goals for the Netherlands national team between 1967 and 1972.