| Oct 20, 1983 | Florida State 51, Louisville 7 | Box score |
| Oct 22, 1983 | Air Force 33, Utah 31 | Box score |
| Oct 22, 1983 | Arkansas 24, Houston 3 | Box score |
| Oct 22, 1983 | 5Auburn 28, Mississippi State 13 | Box score |
| Oct 22, 1983 | Ball State 24, Western Michigan 20upset | Box score |
| Oct 22, 1983 | Baylor 56, TCU 21 | Box score |
| Oct 22, 1983 | 18BYU 47, San Diego State 12 | Box score |
| Oct 22, 1983 | Cal State Fullerton 18, Fresno State 17 | Box score |
| Oct 22, 1983 | Clemson 27, NC State 17 | Box score |
| Oct 22, 1983 | Colorado State 31, UTEP 15 | Box score |
| Oct 22, 1983 | 6Florida 24, East Carolina 17 | Box score |
| Oct 22, 1983 | 7Georgia 47, Kentucky 21 | Box score |
| Oct 22, 1983 | Hawai’i 25, New Mexico 16 | Box score |
| Oct 22, 1983 | 11Illinois 35, Purdue 21 | Box score |
| Oct 22, 1983 | LSU 20, South Carolina 6 | Box score |
| Oct 22, 1983 | 15Maryland 38, Duke 3 | Box score |
| Oct 22, 1983 | Miami (OH) 12, Central Michigan 7upset | Box score |
| Oct 22, 1983 | 10Michigan 16, 12Iowa 13 | Box score |
| Oct 22, 1983 | Ole Miss 21, Vanderbilt 14 | Box score |
| Oct 22, 1983 | Missouri 38, Kansas State 0 | Box score |
| Oct 22, 1983 | 1Nebraska 69, Colorado 19 | Box score |
| Oct 22, 1983 | UNLV 28, Utah State 10 | Box score |
| Oct 22, 1983 | Northern Illinois 24, Bowling Green 23 | Box score |
| Oct 22, 1983 | Northwestern 19, Minnesota 8 | Box score |
| Oct 22, 1983 | Notre Dame 27, USC 6 | Box score |
| Oct 22, 1983 | Ohio 21, Kent State 20 | Box score |
| Oct 22, 1983 | 17Ohio State 21, Michigan State 11 | Box score |
| Oct 22, 1983 | 16Oklahoma 49, Iowa State 11 | Box score |
| Oct 22, 1983 | Oklahoma State 27, Kansas 10 | Box score |
| Oct 22, 1983 | Penn State 41, 4West Virginia 23upset | Box score |
| Oct 22, 1983 | Pittsburgh 21, Navy 14 | Box score |
| Oct 22, 1983 | San José State 18, Long Beach State 9 | Box score |
| Oct 22, 1983 | Stanford 31, 19Arizona 22upset | Box score |
| Oct 22, 1983 | Tennessee 37, Georgia Tech 3 | Box score |
| Oct 22, 1983 | 2Texas 15, 9SMU 12 | Box score |
| Oct 22, 1983 | Texas A&M 29, Rice 10 | Box score |
| Oct 22, 1983 | Toledo 37, Eastern Michigan 9 | Box score |
| Oct 22, 1983 | Tulane 14, Southern Miss 7upset | Box score |
| Oct 22, 1983 | Tulsa 59, Texas Tech 20 | Box score |
| Oct 22, 1983 | UCLA 20, California 16 | Box score |
| Oct 22, 1983 | Wake Forest 38, Virginia 34 | Box score |
| Oct 22, 1983 | 14Washington 32, Oregon 3 | Box score |
| Oct 22, 1983 | Washington State 31, 13Arizona State 21upset | Box score |
| Oct 22, 1983 | Wichita State 31, West Texas 30 | Box score |
| Oct 22, 1983 | Wisconsin 45, Indiana 14 | Box score |