The 1986 Kansas State Wildcats football team represented Kansas State University in the 1986 NCAA Division I-A football season. The team's head football coach was Stan Parrish. The Wildcats played their home games in KSU Stadium. They finished with a record of 2–9 overall and 1–6 in Big Eight Conference play.

The Wildcats' October 18 win against rival Kansas would be the program's last victory for 31 games, stretching until the 1989 season, when they defeated North Texas 20–17 on a last-second touchdown pass. Kansas State posted a 0-30-1 record during the streak, with the lone tie also coming against Kansas in 1987.

Date	Opponent	Site	Result	Attendance	Source
August 30	Western Illinois*	KSU Stadium Manhattan, KS	W 35–7	26,320	[1]
September 6	at Texas Tech*	Jones Stadium Lubbock, TX	L 7–41	37,842	[2]
September 13	Northern Iowa*	KSU Stadium Manhattan, KS	L 0–17	28,820	[3]
September 20	at TCU*	Amon G. Carter Stadium Fort Worth, TX	L 22–35	26,139	[4]
October 4	at No. 6 Oklahoma	Oklahoma Memorial Stadium Norman, OK	L 10–56	74,284	[5]
October 18	Kansas	KSU Stadium Manhattan, KS (rivalry)	W 29–12	38,320	[6]
October 25	Missouri	KSU Stadium Manhattan, KS	L 6–17	19,850	[7]
November 1	at No. 9 Nebraska	Memorial Stadium Lincoln, NE (rivalry)	L 0–38	75,893	[8]
November 8	Oklahoma State	KSU Stadium Manhattan, KS	L 3–23	21,270	[9]
November 15	at Iowa State	Cyclone Stadium Ames, IA (rivalry)	L 19–48	32,305	[10]
November 22	Colorado	KSU Stadium Manhattan, KS (rivalry)	L 3–49	14,700	[11]
*Non-conference game Homecoming Rankings from AP Poll released prior to the game