1970 Washington State Cougars football
Conference	Pacific-8 Conference
Record	1–10 (0–7 Pac-8)
Head coach	Jim Sweeney (3rd season)
Home stadium	Joe Albi Stadium
Seasons ← 1969 1971 →

The 1970 Washington State Cougars football team was an American football team that represented Washington State University in the Pacific-8 Conference (Pac-8) during the 1970 NCAA University Division football season. In their third season under head coach Jim Sweeney, the Cougars compiled a 1–10 record (0–7 in Pac-8, last), and were outscored 460 to 231.^[1][2]

The team's statistical leaders included Ty Paine with 1,581 passing yards, Bob Ewen with 667 rushing yards, and Ed Armstrong with 488 receiving yards.^[3]

Due to the fire at Rogers Field in April,^[4] all home games were played at Joe Albi Stadium in Spokane in 1970 and 1971. AstroTurf was installed there in the summer of 1970.^[5][6]

For the second straight year, Washington State played a full conference schedule and went winless. The only victory was in September over neighbor Idaho in the Battle of the Palouse, the sole meeting in a three-year span. The annual rivalry game was not played the previous season (and in 1971) to allow the Cougars to schedule all seven conference opponents.^[7]

^{[11][12][13][14][15][16][17][18]}

One Washington State offensive lineman, junior guard Steve Busch, was named to the All-Pac-8 team. On the second team (honorable mention) was senior cornerback Lionel Thomas.^[19][20] Busch made the first team again as a senior in 1971.^[21]

• Game program: Idaho vs. WSU at Spokane – September 19, 1970
• Game program: Stanford vs. WSU at Spokane – October 17, 1970
• Game program: USC vs. WSU at Spokane – November 7, 1970
• Game program: Oregon State vs. WSU at Spokane – November 14, 1970
• Game program: Washington vs. WSU at Spokane – November 21, 1970