| Jo Planckaert | |
| Fullname: | Jo Planckaert |
| Birth Date: | 1970 12, df=yes |
| Birth Place: | Deinze, Belgium |
| Weight: | 700NaN0 |
| Currentteam: | Retired |
| Discipline: | Road |
| Role: | Rider |
| Proyears1: | 1992 |
| Proteam1: | Panasonic–Sportlife |
| Proyears2: | 1993 |
| Proyears3: | 1994 |
| Proteam3: | Collstrop–Lystex |
| Proyears4: | 1995 |
| Proteam4: | Collstrop–Lystex |
| Proyears5: | 1996 |
| Proteam5: | Ceramiche Refin–Mobilvetta |
| Proyears6: | 1997 - 1999 |
| Proteam6: | Lotto–Mobistar |
| Proyears7: | 2000–2003 |
| Proteam7: | Cofidis |
| Proyears8: | 2004 |
| Proteam8: | MrBookmaker.com |
Jo Planckaert (born 16 December 1970 in Deinze) is a former Belgian professional road bicycle racer. He is the son of former professional road bicycle racer Willy Planckaert, brother of famous road bicycle racers Eddy and Walter Planckaert.