The 2019 Northwestern State Demons football team represented Northwestern State University as a member of the Southland Conference during the 2019 NCAA Division I FCS football season.

Led by second-year head coach Brad Laird, the Demons compiled an overall record of 3–9 with a mark of 3–6 in conference play, tying for eighth place in the Southland.

Northwestern State played home games at Harry Turpin Stadium in Natchitoches, Louisiana.

at Manning Field at John L. Guidry Stadium, Thibodaux, LA

at Gayle and Tom Benson Stadium, San Antonio, TX