The 1984 Montana State Bobcats football team represented the Montana State University (MSU) in the 1984 NCAA Division I-AA football season. The team was led by Dave Arnold in his second season as a head coach. The Bobcats played their home games at Reno H. Sales Stadium.

Date	Opponent	Rank	Site	TV	Result	Attendance	Source
September 8	Mesa State*		Reno H. Sales Stadium Bozeman, MT		W 30–14		[1]
September 15	at Eastern Washington*		Joe Albi Stadium Spokane, WA		L 16–21		[2]
September 22	at Idaho		Kibbie Dome Moscow, ID		W 34–28	11,600	[3]
September 29	No. 18 Idaho State		Reno H. Sales Stadium Bozeman, MT		L 6–22	11,117	[4]
October 6	at Weber State		Wildcat Stadium Ogden, UT		W 48–0	9,680	[5]
October 13	Nevada		Reno H. Sales Stadium Bozeman, MT		W 44–41 4OT	6,317	[6]
October 20	Portland State*		Reno H. Sales Stadium Bozeman, MT		W 45–22	10,797	[7]
October 27	No. 8 Boise State		Reno H. Sales Stadium Bozeman, MT		W 22–18	8,387	[8]
November 3	at Montana	No. 15	Dornblaser Field Missoula, MT (rivalry)		W 34–24	12,500	[9]
November 10	Northern Arizona	No. 10	Reno H. Sales Stadium Bozeman, MT		W 41–3	9,357	[10]
November 17	at Fresno State*	No. 6	Bulldog Stadium Fresno, CA		W 35–31	24,088	[11]
December 1	No. 10 Arkansas State*	No. 2	Reno H. Sales Stadium Bozeman, MT (NCAA Division I-AA Quarterfinal)		W 31–14	12,037	[12]
December 8	No. 2 Rhode Island*	No. 2	Reno H. Sales Stadium Bozeman, MT (NCAA Division I-AA Semifinal)		W 32–20	12,697	[13]
December 15	vs. No. 9 Louisiana Tech*	No. 2	Johnson Hagood Stadium Charleston, SC (NCAA Division I-AA Championship Game)	SPN	W 19–6	9,125	[14]
*Non-conference game Homecoming Rankings from NCAA Division I-AA Football Committee Poll released prior to the game

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