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.
OSU made their first bowl game appearance in 35 years, but dropped the Oahu Bowl by six points to host Hawaii on Christmas day to finish at 7–5.
Hired in January, Erickson was previously the head coach of the NFL's Seattle Seahawks for four years, preceded by six seasons at the University of Miami. Predecessor Mike Riley had left the Beavers after just two seasons for the NFL's San Diego Chargers, then returned to Corvallis in February 2003.
|• Oregon St
|1||9:57||ORST||Ken Simonton 4 yard run (Ryan Cesca kick)||Oregon St 7–0|
|1||1:53||ORST||Roddy Tompkins 23 yard pass from Jonathan Smith (Ryan Cesca kick)||Oregon St 14–0|
|2||9:52||ORST||Jonathan Smith 10 yard run (Ryan Cesca kick)||Oregon St 21–0|
|2||5:54||UCLA||Gabe Crecion 4 yard pass from Cory Paus (Chris Griffith kick)||Oregon St 21–7|
|2||5:31||ORST||Antonio Battle 50 yard run (Ryan Cesca kick)||Oregon St 28–7|
|2||3:31||ORST||Roddy Tompkins 47 yard pass from Jonathan Smith (Ryan Cesca kick)||Oregon St 35–7|
|2||:35||ORST||Imani Percoats 10 yard pass from Jonathan Smith (Ryan Cesca kick)||Oregon St 42–7|
|4||4:44||ORST||Shawn Kintner 38 yard pass from Terrance Bryant (Matt Stanwood kick)||Oregon St 49–7|
|4||2:43||ORST||Hashim Hall 3 yard run (kick failed)||Oregon St 55–7|
Oregon State's biggest margin of victory in three years (67–28 over Northern Illinois), and their highest point total to date against a Pac-10 opponent.