The 1999 Utah State Aggies football team represented Utah State University in the 1999 NCAA Division I-A football season as a member of the Big West Conference. The Aggies were once again led by head coach Dave Arslanian, who was in his second year with the program. The Aggies played their home games at Romney Stadium in Logan, Utah. Utah State finished with a 4–7 record, a one game improvement over 1998, but would dismiss Coach Arslanian at the end of the season.