|1909 Colorado Agricultural Aggies football|
|Conference||Colorado Faculty Athletic Conference|
|1909 record||1–2 (0–2 CFAC)|
|Head coach||Claude Rothgeb (4th season)|
|Home stadium||Durkee Field|
The 1909 Colorado Agricultural Aggies football team represented Colorado Agricultural College (now known as Colorado State University) in the Colorado Faculty Athletic Conference (CFAC) during the 1909 college football season. In their fourth and final season under head coach Claude Rothgeb, the Aggies compiled a 1–2 record (0–2 against CFAC opponents) and were outscored by a total of 91 to 38.
|October 16||Wyoming||W 32–3|
|October 23||at Colorado||L 0–57|
|November 6||at Colorado College||L 6–31|
- ↑ "2017 Colorado State Football Media Guide". Colorado State University. 2017. pp. 162, 170. https://s3.amazonaws.com/sidearm.sites/csurams.com/documents/2017/8/21/G145_174_2017FBmg.pdf. Retrieved December 23, 2018.