2017 Mountain West Conference Leaders Passing Defense - Games in August/September Only through 01/08/2018
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Air Force | 4 | 67 | 38 | 56.7 | 535 | 8.0 | 3 | 1 | 135.58 | 16.8 | 133.8 |
| 2 | Wyoming | 5 | 115 | 68 | 59.1 | 805 | 7.0 | 6 | 6 | 124.72 | 23.0 | 161.0 |
| 3 | San Diego State | 5 | 122 | 74 | 60.7 | 931 | 7.6 | 7 | 8 | 130.59 | 24.4 | 186.2 |
| 4 | Utah State | 5 | 132 | 68 | 51.5 | 971 | 7.4 | 8 | 7 | 122.70 | 26.4 | 194.2 |
| 5 | San Jose State | 6 | 166 | 102 | 61.4 | 1302 | 7.8 | 12 | 3 | 147.58 | 27.7 | 217.0 |
| 6 | New Mexico | 5 | 176 | 106 | 60.2 | 1101 | 6.3 | 11 | 4 | 128.86 | 35.2 | 220.2 |
| 7 | Boise State | 4 | 146 | 93 | 63.7 | 924 | 6.3 | 7 | 4 | 127.20 | 36.5 | 231.0 |
| 8 | Fresno State | 4 | 135 | 91 | 67.4 | 928 | 6.9 | 8 | 4 | 138.78 | 33.8 | 232.0 |
| 9 | Hawai'i | 5 | 145 | 96 | 66.2 | 1384 | 9.5 | 13 | 2 | 173.22 | 29.0 | 276.8 |
| 10 | Colorado State | 5 | 189 | 118 | 62.4 | 1387 | 7.3 | 7 | 7 | 128.89 | 37.8 | 277.4 |
| 11 | UNLV | 4 | 153 | 98 | 64.1 | 1190 | 7.8 | 10 | 5 | 144.42 | 38.3 | 297.5 |
| 12 | Nevada | 5 | 186 | 129 | 69.4 | 1670 | 9.0 | 14 | 3 | 166.39 | 37.2 | 334.0 |