1966 Washington State Cougars football
Conference	Athletic Association of Western Universities
Record	3–7 (1–3 AAWU)
Head coach	Bert Clark (3rd season)
Home stadium	Rogers Field Joe Albi Stadium (Spokane)
Seasons ← 1965 1967 →

The 1966 Washington State Cougars football team was an American football team that represented Washington State University in the Athletic Association of Western Universities (AAWU) during the 1966 NCAA University Division football season. Led by third-year head coach Bert Clark, the Cougars compiled a 3–7 record (1–3 in AAWU, tie for sixth), and were outscored 211 to 132.^[1][2] Two home games were played on campus at Rogers Field in Pullman, and three at Joe Albi Stadium in Spokane.

The team's statistical leaders included Jerry Henderson with 989 passing yards, Ammon McWashington with 298 rushing yards, and Doug Flansburg with 613 receiving yards.^[3]

The trip to the Houston Astrodome in September included a jet flight, the first for Cougar football.^[4] It was the first college football game played on artificial turf, the majority (baseball outfield) of the AstroTurf was installed two months earlier in July.^[5][6]

After consecutive losses in the Battle of the Palouse,^[7][8] WSU scored two late touchdowns to defeat Idaho 14–7 in the chilly mud at Neale Stadium on October 22;^[9][10][11] the Cougars have not played in neighboring Moscow since.

Washington State defeated Oregon in the final varsity football game at Hayward Field.^[12][13][14] In the rivlary game with Washington at Spokane,^[15][16] the Cougars lost for the eighth straight year.^[17][18][19]

Date	Opponent	Site	Result	Attendance	Source
September 17	California	Joe Albi Stadium Spokane, WA	L 6–21	23,300	[20][21][22]
September 23	at Houston*	Houston Astrodome Houston, TX	L 7–21	36,104	[4][23]
October 1	Baylor*	Joe Albi Stadium Spokane, WA	L 14–20	18,500–19,775
October 8	Arizona State*	Rogers Field Pullman, WA	W 24–15	18,700	[24]
October 15	at Utah*	Ute Stadium Salt Lake City, UT	L 15–26	20,051	[25]
October 22	at Idaho*	Neale Stadium Moscow, ID (Battle of the Palouse)	W 14–7	16,500	[9][10][11]
October 29	Oregon State	Rogers Field Pullman, WA	L 13–41	18,500	[26][27]
November 5	at Oregon	Hayward Field Eugene, OR	W 14–13	17,500	[12][13][14][28]
November 12	at Arizona*	Arizona Stadium Tucson, AZ	L 18–28	23,000	[29]
November 19	Washington	Joe Albi Stadium Spokane, WA (Apple Cup)	L 7-19	33,800	[17][18][19]
*Non-conference game Homecoming

Source:^{[15][30][31][32][33]}

Three Cougars were selected in the 1967 NFL/AFL Draft.

^[34][35]

• Game program: California vs. WSU at Spokane – September 17, 1966
• Game program: Baylor vs. WSU at Spokane – October 1, 1966
• Game program: Arizona State at WSU – October 8, 1966
• Game program: WSU at Utah – October 15, 1966
• Game program: Oregon State at WSU – October 29, 1966
• Game program: Washington vs. WSU at Spokane – November 19, 1966