The 1999 Oregon State Beavers football team represented Oregon State University in the Pacific-10 Conference (Pac-10) during the 1999 NCAA Division I-A football season. In their first season under head coach Dennis Erickson, the Beavers compiled a 7–4 regular season record (4–4 in Pac-10, fifth), their first winning season in 29 years. They opened with three non-conference wins, lost the first three conference games, then won four straight, but fell in the Civil War at Oregon.