| Mode: | baseball |
| Year: | 2021 |
| Team: | Jacksonville Dolphins |
| Conference: | Atlantic Sun Conference |
| Short Conf: | ASUN |
| Record: | 16–32 |
| Conf Record: | 3–15 |
| Head Coach: | Chris Hayes |
| Hc Year: | 5th |
| Stadium: | John Sessions Stadium |
| Champion: | Atlantic Sun tournament champion |
| Bowl: | NCAA tournament |
| Bowl Result: | Columbia Regional |
The 2021 Jacksonville Dolphins baseball team represents Jacksonville University during the 2021 NCAA Division I baseball season. The Dolphins play their home games at John Sessions Stadium as a member of the Atlantic Sun Conference They are led by head coach Chris Hayes, in his fifth year as head coach.
The 2020 Jacksonville Dolphins baseball team notched a 9–9 (0–0) regular-season record. The season prematurely ended on March 12, 2020, due to concerns over the COVID-19 pandemic.