The 1985 San Diego Chargers season was the franchise's 16th season in the National Football League (NFL), its 26th overall. The team improved on their 7–9 record from 1984 to an 8–8 finish. For the third time in five years, the Chargers led the league in scoring. It was Don Coryell's final full season as the team's head coach, as he would resign halfway through the following season after a 1–7 start.

Donald David Coryell was an American football coach. He coached in high school, college, and the professional ranks; his most notable NCAA post was with the San Diego State Aztecs, then he moved on to the National Football League (NFL), first with the St. Louis Cardinals from 1973 to 1977 and then the San Diego Chargers from 1978 to 1986. Well known for his innovations in football's passing game, in particular the Air Coryell offense he created with the Chargers, Coryell was the first head coach to win more than 100 games at both the collegiate and professional levels. He was inducted into the Chargers Hall of Fame in 1994, the College Football Hall of Fame in 1999, and the Pro Football Hall of Fame in 2023.