1999 Grambling State Tigers football team

The 1999 Grambling State Tigers football team represented Grambling State University as a member of the West Division of the Southwestern Athletic Conference (SWAC) during the 1999 NCAA Division I-AA football season. Led by second year head coach Doug Williams, the Tigers compiled an overall record of 7–4 and a mark of 2–2 in conference play, and finished third in the SWAC West Division.