| Dennis Therrell | |
| Birth Date: | August 30, 1956 |
| Birth Place: | Pikeville, Tennessee, U.S. |
| Alma Mater: | Tennessee Tech (1978) Tennessee (1985) |
| Player Years1: | 1974–1976 |
| Player Team1: | Tennessee Tech |
| Player Positions: | Linebacker |
| Coach Years1: | 1983–1984 |
| Coach Team1: | Tennessee (GA) |
| Coach Years2: | 1985–1986 |
| Coach Team2: | Middle Tennessee (DE) |
| Coach Years3: | 1987–1989 |
| Coach Team3: | Lock Haven (DC) |
| Coach Years4: | 1990–1995 |
| Coach Team4: | Lock Haven |
| Coach Years5: | 1996–1999 |
| Coach Team5: | Illinois State (DC) |
| Coach Years6: | 2000–2003 |
| Coach Team6: | Army (DC) |
| Coach Years7: | 2004–2005 |
| Coach Team7: | Murray State (DC) |
| Coach Years8: | 2006 |
| Coach Team8: | Auburn (VA) |
| Coach Years9: | 2007 |
| Coach Team9: | UNLV (LB) |
| Coach Years10: | 2008 |
| Coach Team10: | UNLV (DC/LB) |
| Coach Years11: | 2009 |
| Coach Team11: | UNLV (DC/S) |
| Coach Years12: | 2010–2011 |
| Coach Team12: | Las Vegas Locomotives (LB) |
| Coach Years13: | 2012 |
| Coach Team13: | Las Vegas Locomotives (DB) |
| Coach Years14: | 2013–2014 |
| Coach Team14: | Murray State (DC) |
| Coach Years15: | 2017 |
| Coach Team15: | Bledsoe County HS (TN) |
| Overall Record: | 14–51–1 (college) 4–7 (high school) |
Dennis Therrell (born August 30, 1956) is an American football coach and former player. He served as the head football coach at Lock Haven University of Pennsylvania from 1990 to 1995, compiling a record of 14–51–1. Therrell played collegiately as a linebacker at Tennessee Tech during the mid-1970s.
Therrell began his coaching career at the high school level, serving for one year at Campbell County High School (1979) and three seasons at Rhea County High School (1980–1982) in Tennessee. He made his first entry into major college football as a graduate assistant coach at the University of Tennessee. In 1985, he became an assistant football coach for Middle Tennessee State University, coaching the Blue Raiders defensive ends until 1987. He then served as the defensive coordinator for Division-II member Lock Haven University for three years (1987–1989), before becoming the school's head coach in 1990.
In 1996, Therrell joined Todd Berry's coaching staff at Illinois State University as the defensive coordinator. He helped to lead the Redbirds to the 1999 NCAA Division I-AA semifinals. Following the 1999 campaign, Therrell followed Berry to the United States Military Academy, where he served as the defensive coordinator for four seasons (2000–2003).
He then was the defensive coordinator for Murray State University from 2004 to 2005. The Murray State Racers football team defense was ranked fourth. Subsequently, Therrell had a three-year stint at UNLV from 2007 to 2009, serving as the Rebels defensive coordinator for the last two seasons. He also coached the safeties in 2009, after spending his first two seasons mentoring the linebackers.[1] [2]
After coaching three seasons in the professional ranks with the Las Vegas Locomotives of the United Football League (UFL), Therrell returned to Murray State as defensive coordinator in 2013.[3] [4]
Therrell served as head coach at his alma mater, Bledsoe County High School, during the fall of 2017, leading the Warriors to a 4–7 record. He resigned in July 2018.[5] [6]