The 1984–85 Marshall Thundering Herd men's basketball team represented Marshall University during the 1984–85 NCAA Division I men's basketball season.
The Thundering Herd, led by second-year head coach Rick Huckabay, played their home games at the Cam Henderson Center as members of the Southern Conference.
They defeated Davidson, The Citadel, and VMI to become champions of the SoCon tournament.
They received the SoCon's automatic bid to the NCAA tournament where, as a No.
2 seed VCU in the first round.