| Mode: | Basketball |
| Year: | 2020–21 |
| Prev Year: | 2019–20 |
| Next Year: | 2021–22 |
| Team: | Purdue Fort Wayne Mastodons |
| Conference: | Horizon League |
| Short Conf: | Horizon |
| Record: | 8–15 |
| Conf Record: | 6–14 |
| Hc Year: | 7th |
| Asst Coach1: | Ryan Sims |
| Ac1 Year: | 11th |
| Asst Coach2: | Adam Blaylock |
| Ac2 Year: | 3rd |
| Asst Coach3: | Mike Wolf |
| Ac3 Year: | 2nd |
The 2020–21 Purdue Fort Wayne Mastodons men's basketball team represented Purdue University Fort Wayne in the 2020–21 NCAA Division I men's basketball season. The Mastodons, led by seventh-year head coach Jon Coffman, played their home games at the Hilliard Gates Sports Center in Fort Wayne, Indiana, as members of the Horizon League.
This was the Mastodons' first season in the Horizon League; the school left the Summit League after the 2019–20 season.
The Mastodons finished the 2019–20 season 14–19 overall, 6–10 in Summit League play, to finish in 7th place. In the Summit League tournament, they defeated South Dakota State in the quarterfinals, before falling to North Dakota in the semifinals.
| Name | Number | Pos. | Height | Weight | Year | Hometown | Reason for departure | |
|---|---|---|---|---|---|---|---|---|
| Chase Johnston | 0 | G | 6'2" | 180 | Freshman | Transferred to Stetson | ||
| Brian Patrick | 2 | G | 6'5" | 200 | Junior | Transferred to DePaul | ||
| Jalin Wimberly | 4 | G | 6'4" | 180 | Junior | Transferred to Reinhardt | ||
| Tionne Rollins | 5 | G | 6'2" | 180 | Freshman | Transferred to Polk State | ||
| Matt Holba | 13 | F | 6'7" | 225 | RS Senior | Graduated | ||
| Josh Inkumsah | 31 | F | 6'7" | 265 | RS Freshman | Transferred to Ottawa | ||
| Rylen Grundy | 35 | F | 6'5" | 200 | Sophomore | Did not return to program | ||
| Marcus DeBerry | 41 | G | 6'5" | 195 | RS Senior | Graduated |
| Name | Number | Pos. | Height | Weight | Year | Hometown | Previous School | |
|---|---|---|---|---|---|---|---|---|
| Bobby Planutis | 0 | F | 6'8" | 200 | RS Junior | St. Bonaventure | ||
| Bryce Waterman | 22 | G | 6'6" | 205 | Sophomore | Pensacola State | ||
| Demetric Horton | 25 | G | 6'5" | 200 | Junior | Independence CC | ||
| Jalon Pipkins | 50 | G | 6'4" | 185 | Senior | Loyola–Chicago |
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Regular Season|-!colspan=12 style=| Horizon League tournament|-|-Source[1]