The 1931 Kansas Jayhawks football team represented the University of Kansas in the Big Six Conference during the 1931 college football season. In their fourth season under head coach Bill Hargiss, the Jayhawks compiled a 5–5 record (1–3 against conference opponents), finished in fourth place in the conference, and outscored opponents by a combined total of 112 to 54.^[1][2] They played their home games at Memorial Stadium in Lawrence, Kansas. Otto Rost was the team captain.^[2]

Date	Opponent	Site	Result	Attendance	Source
September 26	Colorado Agricultural*	Memorial Stadium Lawrence, KS	W 27–6	6,000	[3]
October 2	Haskell*	Memorial Stadium Lawrence, KS	L 0–6	11,000	[4]
October 10	Millikin*	Memorial Stadium Lawrence, KS	W 30–0		[5]
October 17	Kansas State	Memorial Stadium Lawrence, KS (rivalry)	L 0–13		[6]
October 24	at Nebraska	Memorial Stadium Lincoln, NE (rivalry)	L 0–6	16,517–20,000	[7][8]
October 31	Oklahoma A&M*	Memorial Stadium Lawrence, KS	L 7–13		[9]
November 7	at Oklahoma	Memorial Stadium Norman, OK	L 0–10		[10]
November 14	at Washington University*	Francis Field St. Louis, MO	W 28–0	3,000	[11]
November 21	Missouri	Memorial Stadium Lawrence, KS (rivalry)	W 14–0	20,567	[12]
December 5	at Washburn*	Moore Bowl Topeka, KS	W 6–0	3,500	[13]
*Non-conference game Homecoming