| Year: | 2009 |
| Team: | Dayton Flyers |
| Sport: | football |
| Conference: | Pioneer Football League |
| Short Conf: | PFL |
| Record: | 9–2 |
| Conf Record: | 7–1 |
| Head Coach: | Rick Chamberlin |
| Hc Year: | 2nd |
| Off Coach: | Dave Whilding |
| Oc Year: | 27th |
| Stadium: | Welcome Stadium |
| Champion: | PFL co-champion |
The 2009 Dayton Flyers football team represented the University of Dayton as a member of the Pioneer Football League (PFL) during the 2009 NCAA Division I FCS football season. Led by second-year head coach Rick Chamberlin, the Flyers compiled an overall record of 9–2 with a mark of 7–1 in conference play, sharing the PFL title with . Dayton played home games at Welcome Stadium in Dayton, Ohio.