1999 Colorado State football

Colorado State went 8–4 in 1999 (5–2 in conference) under Sonny Lubick, outscoring its opponents 345 to 269, and lost to Southern Miss 23–17 in its bowl game.

1999 Colorado State football, every game

Date	Game	Result	Score
Sep 4, 1999	Colorado State vsNo. 14 Colorado · neutral	W	41–14
Sep 11, 1999	No. 24 Colorado State vsNevada	W	38–33
Sep 16, 1999	No. 23 Colorado State @No. 25 BYU	L	13–34
Oct 2, 1999	Colorado State vsNew Mexico State	W	46–7
Oct 9, 1999	Colorado State @Fresno State	L	13–44
Oct 16, 1999	Colorado State vsSan Diego State	L	10–17
Oct 23, 1999	Colorado State @Wyoming	W	24–13
Oct 28, 1999	Colorado State vsUtah	W	31–24
Nov 6, 1999	Colorado State @New Mexico	W	36–22
Nov 18, 1999	Colorado State vsAir Force	W	41–21
Nov 27, 1999	Colorado State @UNLV	W	35–17
Dec 31, 1999	Colorado State vsNo. 16 Southern Miss · neutral · bowl	L	17–23

A number before a team is its AP rank going into the game.