| Dave Loos | |
| Birth Date: | 5 March 1947 |
| Birth Place: | St. Louis, Missouri, U.S. |
| Player Years1: | 1966–1969 |
| Player Team1: | Memphis State |
| Player Positions: | Point guard |
| Coach Years1: | 1969–1970 |
| Coach Team1: | Memphis State (asst.) |
| Coach Years2: | 1970–1974 |
| Coach Team2: | Christian Brothers (asst.) |
| Coach Years3: | 1974–1982 |
| Coach Team3: | Mehlville HS |
| Coach Years4: | 1982–1986 |
| Coach Team4: | Christian Brothers |
| Coach Years5: | 1986–1990 |
| Coach Team5: | Memphis State (asst.) |
| Coach Years6: | 1990–2017 |
| Coach Team6: | Austin Peay |
| Admin Years1: | 1997–2013 |
| Admin Team1: | Austin Peay |
| Overall Record: | 502–463 |
| Championships: | As head coach: 4× OVC tournament (1996, 2003, 2008, 2016) 5× OVC regular season (1997, 2003, 2004, 2007, 2008) VSAC regular season (1985)As assistant coach: Metro tournament (1987) |
| Awards: | 4× OVC Coach of the Year (1991, 1997, 2003, 2004) |
| Coaching Records: | Winningest head coach in OVC men's basketball history (421 wins)[1] |
David Henry Loos (born March 5, 1947) is a retired American college basketball coach who most recently served as head coach of the men's team at Austin Peay State University, where he is also a former athletic director.[1] He was head coach from 1990[2] until retiring at the end of the 2016–17 season.[1]
On April 2, 2013, Loos announced that he would relinquish his position as director of athletics to focus solely on coaching basketball.[3] Derek van der Merwe was announced as the successor to Loos on June 5, 2013.[4] On March 5, 2016, the Loos-coached Governors won the tournament championship of the Ohio Valley Conference, thus qualifying to participate once again in the NCAA Division I men's basketball tournament.
The following season, which ultimately proved to be his last as head coach, was set against the backdrop of a battle with colorectal cancer. During the 2016 offseason, he underwent surgery to remove the malignancy. A malignant lymph node was found during the procedure, and he began chemotherapy. Loos was forced to take a medical leave in January 2017, missing four games.[5] [6] After the Governors failed to make the 2017 OVC tournament, ending their season, Loos chose to retire. The university announced his decision on March 2, which was followed by a full press conference on March 6.[1]