The 1965 San Diego Chargers season was their sixth as a professional AFL franchise; the team improved on their 8–5–1 record in 1964. Head Coach Sid Gillman led the Chargers to their fifth AFL West title, with a 9–2–3 record, before losing the AFL Championship Game to the Buffalo Bills for the second consecutive season. It would prove to be the Chargers' last post-season appearance until (1979).