| Team: | San Diego Chargers |
| Year: | 1977 |
| Record: | 7–7 |
| Division Place: | 3rd AFC West |
| Coach: | Tommy Prothro |
| General Manager: | Johnny Sanders |
| Owner: | Eugene V. Klein |
| Stadium: | San Diego Stadium |
| Playoffs: | Did not qualify |
| Shortnavlink: | Chargers seasons |
The San Diego Chargers season was the franchise's eighth season in the National Football League (NFL), and its 18th overall. It was Tommy Prothro's final full season as the team's head coach.
The 7–7 record allowed the Chargers to break a string of seven consecutive losing seasons. It was their best mark since the AFL–NFL merger.
See main article: 1977 NFL draft.
| Week | Date | Opponent | Result | Record | Venue | Attendance | Recap | |
|---|---|---|---|---|---|---|---|---|
| 1 | September 18 | at Oakland Raiders | L 0–24 | 0–1 | Oakland–Alameda County Coliseum | 51,022 | Recap | |
| 2 | September 25 | at Kansas City Chiefs | W 23–7 | 1–1 | Arrowhead Stadium | 56,146 | Recap | |
| 3 | October 2 | Cincinnati Bengals | W 24–3 | 2–1 | San Diego Stadium | 40,352 | Recap | |
| 4 | October 9 | at New Orleans Saints | W 14–0 | 3–1 | Louisiana Superdome | 53,942 | Recap | |
| 5 | October 16 | New England Patriots | L 20–24 | 3–2 | San Diego Stadium | 50,327 | Recap | |
| 6 | October 23 | Kansas City Chiefs | L 16–21 | 3–3 | San Diego Stadium | 33,010 | Recap | |
| 7 | October 30 | at Miami Dolphins | W 14–13 | 4–3 | Miami Orange Bowl | 40,670 | Recap | |
| 8 | November 6 | at Detroit Lions | L 0–20 | 4–4 | Pontiac Silverdome | 72,559 | Recap | |
| 9 | November 13 | Denver Broncos | L 14–17 | 4–5 | San Diego Stadium | 45,211 | Recap | |
| 10 | November 20 | Oakland Raiders | W 12–7 | 5–5 | San Diego Stadium | 50,887 | Recap | |
| 11 | November 27 | at Seattle Seahawks | W 30–28 | 6–5 | Kingdome | 58,994 | Recap | |
| 12 | December 4 | Cleveland Browns | W 37–14 | 7–5 | San Diego Stadium | 37,312 | Recap | |
| 13 | December 11 | at Denver Broncos | L 9–17 | 7–6 | Mile High Stadium | 74,905 | Recap | |
| 14 | December 18 | Pittsburgh Steelers | L 9–10 | 7–7 | San Diego Stadium | 50,727 | Recap | |
| Note: Intra-division opponents are in bold text. | ||||||||