| Walt Posadowski | |
| Birth Date: | c. 1937 |
| College: | Villanova |
| Coaching Years1: | 1963–66 |
| Coaching Team1: | Bishop McDevitt HS (Head coach) |
| Coaching Years2: | 1967–68 |
| Coaching Team2: | Villanova (Part-time assistant) |
| Coaching Years3: | 1969–75 |
| Coaching Team3: | Villanova (Offensive line coach) |
| Coaching Years4: | 1976 |
| Coaching Team4: | Idaho State (Assistant coach) |
| Coaching Years5: | 1977–78 |
| Coaching Team5: | Saskatchewan Roughriders (Offensive line coach) |
| Coaching Years6: | 1978 |
| Coaching Team6: | Saskatchewan Roughriders (HC) |
| Coaching Years7: | 1980–81 |
| Coaching Team7: | Calgary Stampeders (assistant coach) |
Walter Posadowski (born c. 1937) is a former Canadian Football League (CFL) coach who served as the head coach of the Saskatchewan Roughriders during the 1978 season.
Posadowski played at Villanova University from 1957 to 1959.
Posadowski's coaching career began at Bishop McDevitt High School, where he compiled a 17-15-5 in four season as head football coach.[1] He spent two seasons as a part-time assistant at Villanova before becoming the Wildcats offensive line coach in 1969.[2] Posadowski spent one season (1976) as an assistant at Idaho State University.[3]
Posadowski joined the Saskatchewan Roughriders in 1977 as offensive line coach. After a 0–5 start to the 1978 season, head coach Jim Eddy was fired and Posadowski was named head coach.[4] The Roughriders finished the season 4-11-1 and Posadowski was replaced by retiring quarterback Ron Lancaster.[5]
Following Lancaster's hiring, Posadowski was moved from the head coaching position to director of scouting and recruiting. Posadowski's final coaching position was as an assistant with the Calgary Stampeders.[6]