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 Butler.

Dayton played home games at Welcome Stadium in Dayton, Ohio.

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