| Mode: | Basketball |
| Year: | 2017–18 |
| Team: | Marshall Thundering Herd |
| Conference: | Conference USA |
| Short Conf: | C-USA |
| Record: | 25–11 |
| Conf Record: | 12–6 |
| Hc Year: | 4th |
| Asst Coach1: | Mark Cline |
| Asst Coach2: | Scott Rigot |
| Champion: | C-USA tournament champions |
| Bowl Result: | Second Round |
The 2017–18 Marshall Thundering Herd men's basketball team represented the Marshall University during the 2017–18 NCAA Division I men's basketball season. The Thundering Herd, led by fourth-year head coach Dan D'Antoni, played their home games at the Cam Henderson Center as members of Conference USA. They finished the season 25–11, 12–6 in C-USA play to finish in fourth place. They defeated UTSA, Southern Miss, and Western Kentucky to become champions of the C-USA tournament. They received C-USA's automatic bid to the NCAA tournament where, as a No. 13 seed, they upset Wichita State in the first round before losing to West Virginia in the second round.
The Thundering Herd finished the 2016–17 season 20–15, 10–8 in C-USA play to finish in sixth place. They defeated Florida Atlantic, Old Dominion, and Louisiana Tech to advance to the championship game of the C-USA tournament. There they lost to top-seeded Middle Tennessee. Despite finishing with 20 wins, they did not participate in a postseason tournament.
| Name | Number | Pos. | Height | Weight | Year | Hometown | Notes | |
|---|---|---|---|---|---|---|---|---|
| Ky're Allison | 5 | G | 6'2" | 181 | Freshman | Transferred to Sinclair Community College | ||
| 2 | G | 6'3" | 188 | RS Senior | Graduated | |||
| Jacob Kilgore | 4 | F | 6'5" | 191 | Sophomore | Walk-on; did not return | ||
| Austin Loop | 35 | G | 6'4" | 210 | RS Senior | Graduated | ||
| 21 | G | 6'6.5" | 221 | RS Sophomore | Graduated; did not return | |||
| 25 | F | 6'5" | 249 | RS Senior | Graduated | |||
| Terrence Thompson | 1 | F | 6'7" | 217 | Junior | Graduate transferred to Wake Forest |
|-!colspan=9 style=| Exhibition|-!colspan=9 style=| Non-conference regular season|-!colspan=9 style=| Conference USA regular season|-!colspan=9 style=| Conference USA tournament|-!colspan=9 style=| NCAA tournamentSource[1] [2]