The 1965 Chicago Bears season was their 46th regular season completed in the National Football League. The club posted a 9–5 record, earning them a third-place finish in the NFL Western Conference. The club improved over the dismal 5–9 record of the previous season.
They started the season 0–3, but thanks to rookies Gale Sayers and Dick Butkus, the team won 9 of the last 11 games. Sayers had a magnificent rookie season, and in one game against the San Francisco 49ers at Chicago's Wrigley Field on December 12, he scored 6 touchdowns in a 61–20 Bears win, the first time the Bears scored 61 points in a regular season game. Gale Sayers would set an NFL rookie record with 22 touchdowns in one season. The six touchdown performance from December 12, would tie an NFL record and set a new Bears record.
The 1965 Bears draft class would eventually be named #8 on NFL Top 10 Draft Classes.