|Born||May 20, 1935|
|Coaching career (HC unless noted)|
|1960–1964||Bowling Green (assistant)|
|1966–1968||Ohio State (assistant)|
|Head coaching record|
|Accomplishments and honors|
|2 MAC (1973, 1983)
1 Big Eight (1976)
|2x MAC Coach of the Year (1973, 1983)
2x Big Ten Coach of the Year (1986–1987)
William Guy Mallory (born May 20, 1935) is a former American football player and coach. He served as the head football coach at Miami University (1969–1973), the University of Colorado at Boulder (1974–1978), Northern Illinois University (1980–1983), and Indiana University (1984–1996), compiling a career college football record of 168–129–4.
Mallory is the Indiana Hoosiers' winningest football coach, having compiled a 69–77–3 record. Before taking over the head coaching reins at Indiana in 1984, Mallory coached three other schools to national prominence. While compiling a 168–129–4 career record, Mallory became one of only a handful of coaches in history to guide three different programs to top 20 finishes in national polls. In 1987, Mallory became the first coach to be awarded back-to-back Big Ten coach-of-the-year honors. While at Indiana, Mallory led the Hoosiers to six bowl games including victories in the 1988 Liberty Bowl, and the 1991 Copper Bowl. He also led IU to a top 20 ranking in 1987 and 1988.
Mallory is a member of Miami University's Cradle of Coaches. He is also a member of the Athletic Halls of Fame at Miami University and Indiana University, the Mid-American Conference, the Indiana Football Hall of Fame and the Phi Kappa Tau Hall of Fame.
Mallory was the 15th head college football coach for the Northern Illinois University Huskies located in DeKalb, Illinois and he held that position for four seasons, from 1980 until 1983. His career coaching record at Northern Illinois was 25 wins, 19 losses, and 0 ties. This ranks him sixth at Northern Illinois in total wins and seventh at Northern Illinois in winning percentage.
Head coaching record
|Miami Redskins (Mid-American Conference) (1969–1973)|
|Colorado Buffaloes (Big Eight Conference) (1974–1978)|
|Northern Illinois Huskies (Mid-American Conference) (1980–1983)|
|1983||Northern Illinois||10–2||8–1||1st||W California|
|Indiana Hoosiers (Big Ten Conference) (1984–1996)|
|National championship Conference title Conference division title|
Assistant coaches under Bill Mallory who became NCAA head coaches:
- Dick Crum: Miami (OH) (1974–1977), North Carolina (1978–1987), Kent State (1988–1990)
- Floyd Keith: Howard (1979–1982), Rhode Island (1993–1999)
- Curt Mallory: Indiana State (2017–present)
- Joe Novak: Northern Illinois (1996–2007)
- Scott Shafer: Syracuse (2013–2015)