The 1909 Oregon Agricultural Aggies football team represented Oregon Agricultural College (OAC)—now known as Oregon State University—as a member of the Northwest Conference during the 1909 college football season. In their first and only season under head coach Sol Metzger, the Aggies compiled an overall record of 4–2–1 record with a mark of 1–2 in conference play, placing fourth in the Northwest Conference, and outscored their opponents by a combined total of 54 to 44.[1] Against major opponents, the Aggies lost to Oregon (12–0) and Washington (18–0).[2] The team played its home games at Bell Field in Corvallis, Oregon. Carl Wolf was the team captain.[3]