The 1989 All-Big Eight Conference football team consists of American football players chosen by various organizations for All-Big Eight Conference teams for the 1989 NCAA Division I-A football season. The selectors for the 1989 season included the Associated Press (AP).

• Darian Hagan, Colorado (AP-1)
• Gerry Gdowski, Nebraska (AP-2)

• Blaise Bryant, Iowa State (AP-1)
• Ken Clark, Nebraska (AP-1)
• J. J. Flannigan, Colorado (AP-2)
• Tony Sands, Kansas (AP-2)

• Mike Busch, Iowa State (AP-1)
• John Baker, Kansas (AP-2)

• Michael Smith, Kansas State (AP-1)
• Quinton Smith, Kansas (AP-1)
• Curtis Mayfield, Oklahoma State (AP-2)
• Jeff Campbell, Colorado (AP-2)

• Jake Young, Nebraska (AP-1)
• Mike Wise, Oklahoma (AP-2)

• Doug Glaser, Nebraska (AP-1)
• Mark Vander Poel, Colorado (AP-1)
• Darrin Muilenburg, Colorado (AP-1)
• Joe Garten, Colorado (AP-1)
• Mark Van Keirsbilck, Oklahoma (AP-2)
• Keith Sims, Iowa State (AP-2)
• Chad Faulkner, Kansas State (AP-2)
• Mike Sawatzky, Oklahoma (AP-2)

• Alfred Williams, Colorado (AP-1)
• Kanavis McGhee, Colorado (AP-1)
• Mike Croel, Nebraska (AP-2)
• Chris Wilson, Oklahoma (AP-2)

• Arthur Walker, Colorado (AP-1)
• Scott Evans, Oklahoma (AP-1)
• Kent Wells, Nebraska (AP-1)
• Dante Williams, Oklahoma (AP-2)
• Joel Steed, Colorado (AP-2)
• Stacey Satterwhite, Oklahoma State (AP-2)

• Jeff Mills, Nebraska (AP-1)
• Sim Drain, Oklahoma State (AP-1)
• Frank Blevins, Oklahoma (AP-2)
• Darren MacDonald, Missouri (AP-2)
• Michael Jones, Colorado (AP-2)

• Adrian Jones, Missouri (AP-1)
• Reggie Cooper, Nebraska (AP-1)
• Marcus Robertson, Iowa State (AP-1)
• Bruce Pickens, Nebraska (AP-1)
• Rod Smith, Oklahoma State (AP-2)
• Jason Belser, Oklahoma (AP-2)
• Bruce Young, Colorado (AP-2)

• Cary Blanchard, Oklahoma State (AP-1)
• Ken Culbertson, Colorado (AP-2)

• Tom Rouen, Colorado (AP-1)
• B. J. Lohsen, Kansas (AP-2)

AP = Associated Press^[1]

• 1989 College Football All-America Team