| Bill Lewis | |
| Birth Date: | 5 August 1941 |
| Birth Place: | Philadelphia, Pennsylvania, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1959–1962 |
| Player Team2: | East Stroudsburg |
| Player Sport3: | Baseball |
| Player Years4: | 1960–1963 |
| Player Team4: | East Stroudsburg |
| Player Positions: | Quarterback (football) Pitcher, infielder (baseball) |
| Coach Years1: | 1963–1965 |
| Coach Team1: | East Stroudsburg (QB/WR/DB) |
| Coach Years2: | 1966–1968 |
| Coach Team2: | Pittsburgh (DB) |
| Coach Years3: | 1969–1970 |
| Coach Team3: | Wake Forest (DB) |
| Coach Years4: | 1971–1972 |
| Coach Team4: | Georgia Tech (DB) |
| Coach Years5: | 1974–1976 |
| Coach Team5: | Arkansas (DB) |
| Coach Years6: | 1977–1979 |
| Coach Team6: | Wyoming |
| Coach Years7: | 1980 |
| Coach Team7: | Georgia (DB) |
| Coach Years8: | 1981–1988 |
| Coach Team8: | Georgia (DC/DB) |
| Coach Years9: | 1989–1991 |
| Coach Team9: | East Carolina |
| Coach Years10: | 1992–1994 |
| Coach Team10: | Georgia Tech |
| Coach Years11: | 1996–2004 |
| Coach Team11: | Miami Dolphins (nickel package) |
| Coach Years12: | 2005–2007 |
| Coach Team12: | Notre Dame (AHC/DB) |
| Admin Years1: | 1995 |
| Admin Team1: | Marist School (GA) |
| Overall Record: | 45–52–2 |
| Bowl Record: | 1–0 |
| Awards: | AFCA Coach of the Year (1991) |
William J. Lewis (born August 5, 1941) is a former American football player and coach. He served as the head football coach at the University of Wyoming (1977–1979), East Carolina University (1989–1991), and the Georgia Institute of Technology (1992–1994), compiling a career college football record of 45–52–2. Lewis was a defensive assistant at many schools and most notably served as an assistant to Vince Dooley at the University of Georgia, helping win a National Championship in 1980.
Lewis was named the University of Wyoming's 22nd head football coach in December 1976 following the hiring of Fred Akers by the University of Texas at Austin to be the Longhorn's head coach.
Lewis compiled a 13–21–1 (.386) win–loss record as Wyoming's coach through the 1977 to 1979 seasons. He was fired at the conclusion of the '79 season and replaced by Pat Dye. His largest margin of victory was 51–21 over the University of Texas at El Paso during the 1978 season. His worst loss as the Cowboys head coach came against LSU the year before, 1977. The LSU Tigers pounced on Wyoming, 66–7, in Baton Rouge.
During his tenure at Wyoming, Lewis produced two noted NFL prospects, Ken Fantetti, a linebacker who went on to play for the Detroit Lions for seven years (1979–1985) and Guy Frazier another linebacker who played six years in the NFL for the Cincinnati Bengals (1981–1984) and the Buffalo Bills (1985–1986).
In his most successful head coaching position, Lewis led the East Carolina Pirates to an 11–1 record and an amazing come from behind Peach Bowl victory over North Carolina State in 1991. The program had not had a winning season since 1983 before Lewis arrived.
Lewis served as head coach at East Carolina for three seasons (1989–1991) before departing for Georgia Tech. The 1991 Pirates finished the season with their highest national ranking, #9 in both the AP Poll and the Coaches' Poll, and Lewis received 1991 National Coach-of-the-Year honors from the American Football Coaches Association, United Press International, and Scripps-Howard.
Lewis assumed the head coaching position at Georgia Tech in 1991 following Bobby Ross's departure to coach the NFL's San Diego Chargers. Lewis held the position from 1992 until midway through the 1994 season; he resigned (though some reports say he was effectively fired) after a 1–7 start and was replaced by defensive coordinator George O'Leary, who coached the final three games of the season, all losses.
From 2005 to 2007, Lewis served as the assistant head coach and defensive backs coach for the Notre Dame Fighting Irish under Charlie Weis.