| 2013 Buffalo Bills season | |
|---|---|
| Owner | Ralph Wilson |
| General manager | Buddy Nix, Doug Whaley |
| Head coach | Doug Marrone |
| Home field | Ralph Wilson Stadium |
| Results | |
| Record | 6–10 |
| Division place | 4th AFC East |
| Playoff finish | Did not qualify |
| Pro Bowlers | Mario Williams Kyle Williams Jairus Byrd Marcell Dareus |
| Uniform | |
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The 2013 Buffalo Bills season was the franchise's 44th season in the National Football League (NFL) and the first under head coach Doug Marrone. It was also the final season under the ownership of Ralph Wilson, who died in March 2014 at the age of 95. The team equaled their record from 2012 and missed the playoffs, increasing their playoff drought to 14 seasons. This was the first year of renewed leases on Ralph Wilson Stadium and for the Bills Toronto Series, both of which were signed in the preceding offseason.
The Toronto series was originally set to expire in 2017, but was cancelled in December 2014; the lease on Ralph Wilson Stadium expired in 2022 and was presumably the last long-term agreement with the aging stadium, as the lease specifies that the process of exploring a new stadium began during the lease period. The Bills also started the 2013 season with a new starting quarterback, first-round draft pick EJ Manuel, after previous starter Ryan Fitzpatrick refused a pay cut and was subsequently released.