The 1975 BYU Cougars football team represented Brigham Young University during the 1975 NCAA Division I football season. The Cougars were led by fourth-year head coach LaVell Edwards and played their home games at Cougar Stadium in Provo, Utah. The team competed as a member of the Western Athletic Conference, finishing tied for fourth with a conference record of 4–3.

Date	Opponent	Site	Result	Attendance	Source
September 13	Bowling Green*	Cougar Stadium Provo, UT	L 21–23	29,718	[1]
September 20	at Colorado State	Hughes Stadium Fort Collins, CO	L 17–21	27,491	[2]
September 27	at No. 13 Arizona State	Sun Devil Stadium Tempe, AZ	L 0–20	50,944	[3]
October 3	New Mexico	Cougar Stadium Provo, UT	W 16–15	25,140	[4]
October 11	Air Force*	Cougar Stadium Provo, UT	W 28–14	30,246	[5]
October 25	at Wyoming	War Memorial Stadium Laramie, WY	W 33–20	16,297	[6]
November 1	No. 17 Arizona	Cougar Stadium Provo, UT	L 20–36	25,287	[7]
November 8	at Utah State*	Romney Stadium Logan, UT	W 24–7	21,594	[8]
November 15	Utah	Cougar Stadium Provo, UT (Holy War)	W 51–20	28,265	[9]
November 22	at UTEP	Sun Bowl El Paso, TX	W 20–10	7,350	[10]
November 29	at Southern Miss*	Mississippi Veterans Memorial Stadium Jackson, MS	L 14–42	9,262	[11]
*Non-conference game Homecoming Rankings from AP Poll released prior to the game

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Gifford Nielsen passed and ran for two touchdowns and Brigham Young's defense turned Utah fumbles into three more scores in the 51–20 rout. Mark Uselman also kicked field goals of 47, 47 and 44 yards as the Cougars won their fourth in a row in the series.^[14]