| Year: | 2019 |
| Team: | Cal Poly Mustangs |
| Sport: | football |
| Conference: | Big Sky Conference |
| Short Conf: | Big Sky |
| Record: | 3–8 |
| Conf Record: | 2–6 |
| Head Coach: | Tim Walsh |
| Hc Year: | 11th |
| Off Coach: | Jim Craft |
| Oc Year: | 3rd |
| Off Scheme: | Spread triple-option |
| Def Coach: | Josh Brown |
| Dc Year: | 8th |
| Def Scheme: | 3–4 |
| Stadium: | Alex G. Spanos Stadium |
The 2019 Cal Poly Mustangs football team represented California Polytechnic State University, San Luis Obispo as member of the Big Sky Conference during the 2019 NCAA Division I FCS football season. Led by Tim Walsh in his 11th and final season as head coach, Cal Poly compiled an overall record of 3–8 with a mark of 2–6 in conference play, placing in a five-way tie for ninth in the Big Sky. The Mustangs played home games at Mustang Stadium in San Luis Obispo, California.
On November 25, Walsh announced his retirement. He finished his 11-year tenure at Cal Poly with a record of 59–66.[1]
The Big Sky released their preseason media and coaches' polls on July 15, 2019. The Mustangs were picked to finish in ninth place in both polls.[2]
| 1 | Eastern Washington | 536 (25) | |
| 2 | UC Davis | 510 (13) | |
| 3 | Weber State | 472 (4) | |
| 4 | Montana State | 417 | |
| 5 | Montana | 396 (1) | |
| 6 | Northern Arizona | 302 | |
| 7 | Idaho State | 285 | |
| 8 | Idaho | 248 | |
| 9 | Cal Poly | 196 | |
| 10 | Portland State | 178 | |
| 11 | Southern Utah | 160 | |
| 12 | Sacramento State | 125 | |
| 13 | Northern Colorado | 90 |
| 1 | Eastern Washington | 140 (10) | |
| 2 | UC Davis | 127 (2) | |
| 3 | Weber State | 124 | |
| 4 | Montana | 104 (1) | |
| 5 | Montana State | 100 | |
| 6 | Northern Arizona | 88 | |
| 7 | Idaho State | 72 | |
| 8 | Idaho | 65 | |
| 9 | Cal Poly | 56 | |
| 10 | Portland State | 42 | |
| 11 | Sacramento State | 40 | |
| 12 | Southern Utah | 38 | |
| 13 | Northern Colorado | 19 |
The Mustangs did not have any players selected to the preseason all-Big Sky team.[3]
The game with Weber State, fellow Big Sky Conference member, on September 7 was considered a non-conference game and had no effect on the Big Sky standings.[4] [5]
See also: 2019 San Diego Toreros football team.
See also: 2019 Weber State Wildcats football team.
See also: 2019 Oregon State Beavers football team.
See also: 2019 Southern Utah Thunderbirds football team.
See also: 2019 Montana State Bobcats football team.
See also: 2019 UC Davis Aggies football team and Battle for the Golden Horseshoe.
See also: 2019 North Dakota Fighting Hawks football team.
See also: 2019 Sacramento State Hornets football team.
See also: 2019 Idaho Vandals football team.
See also: 2019 Eastern Washington Eagles football team.
See also: 2019 Northern Colorado Bears football team.