The 1979 San Francisco 49ers season was the franchise's 30th season in the National Football League and their 34th overall. The season is noted as running back O. J. Simpson's final year, quarterback Joe Montana's rookie season, and Bill Walsh's first year as head coach.
The 1979 49ers remain the only team in NFL history to lose twelve games in which they held a lead.
They are also the first team in NFL history to attempt 600 or more passes, attempting 602.
"O.J. Simpson Day" at the stadium as it was his last home game. 49ers' players carried Bill Walsh off the field and fans tore down the goal posts.