The 1949 Cleveland Browns season was the team's fourth and final season in the All-America Football Conference (AAFC). The Browns finished the regular season with a 9–1–2 win–loss–tie record and beat the San Francisco 49ers to win their fourth straight league championship. In the season's sixth game on October 9, 1949, the 49ers stopped the Browns' professional football record unbeaten streak after 29 games. The streak started two years before on October 19, 1947, and included two league championship games and two ties.