2008–09 Sheffield Wednesday F.C. season

Sheffield Wednesday achieved their first league double over city rivals Sheffield United in 95 years, but that was the highlight of a mediocre season for the Owls.

Still, a final 12th-placed finish was an improvement from the relegation struggle of the previous season.

Italian manufacturers Lotto remained kit manufacturers for the season, as did Sheffield-based internet service provider Plusnet for the kit sponsorship.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.