The 1938 All-Big Ten Conference football team consists of American football players selected to the All-Big Ten Conference teams selected by the Associated Press (AP) and United Press (UP) for the 1938 Big Ten Conference football season.

All Big-Ten selections

Ends

• Cleo Diehl, Northwestern (AP-1, UP-1)
• Erwin Prasse, Iowa (AP-1)
• Frank Petrick, Indiana (UP-1)
• Butch Nash, Minnesota (AP-2)
• John Mariucci, Minnesota (AP-2)

Tackles

• Joe Mihal, Purdue (AP-1, UP-1)
• Bob Voigts, Northwestern (AP-2, UP-1)
• Bob Haak, Indiana (AP-1)
• Alex Schoenbaum, Ohio State (AP-2)

Guards

• Ralph Heikkinen, Michigan (AP-1, UP-1)
• Frank Twedell, Minnesota (AP-1)
• Lynn Hovland, Wisconsin (AP-2)
• Hal Method, Northwestern (AP-2)

Centers

• Jack Murray, Wisconsin (AP-1, UP-1)
• Jack Haman, Northwestern (AP-2)

Quarterbacks

• Forest Evashevski, Michigan (AP-1)
• Wilbur Moore, Minnesota (AP-2 [halfback], UP-1)
• Vince Gavre, Wisconsin (AP-2)

Halfbacks

• Lou Brock, Purdue (AP-1, UP-1)
• Tom Harmon, Michigan (AP-1, UP-1)
• Roy Bellin, Wisconsin (AP-2)

Fullbacks

• Howard Weiss, Wisconsin (AP-1, UP-1)
• Larry Buhler, Minnesota (AP-2)

Key

AP = Associated Press, chosen by conference coaches^[1]

UP = United Press, based on a poll of Big Ten coaches, campus observers, and sports writers^[2]

Bold = Consensus first-team selection of both the AP and UP