| Team: | San Diego Chargers |
| Year: | 1970 |
| Record: | 5–6–3 |
| Division Place: | 3rd AFC West |
| Coach: | Charlie Waller |
| General Manager: | Sid Gillman |
| Owner: | Eugene V. Klein |
| Stadium: | San Diego Stadium |
| Ap All-Pros: | None[1] |
| Playoffs: | Did not qualify |
| Shortnavlink: | Chargers seasons |
The San Diego Chargers season was the franchise's eleventh overall season and first season in the National Football League (NFL). As a result of the NFL-AFL Merger, where the league was broken into two conferences, each member of the American Football League was moved into the American Football Conference.
San Diego's 5–6–3 record was the first of seven consecutive losing seasons for the franchise. The 1970 Chargers are the last NFL team to record three ties in a single season, a record which will likely stand, as since the NFL adopted overtime for regular season games in 1974 no team has recorded more than one tie in a season.
See main article: 1970 NFL draft.
| Ed Roseborough | Quarterback | Arizona State | |
| Reg Sharley | Linebacker | Memphis State | |
| Karl Sneider | Wide receiver | Augsburg | |
| James Snow | Linebacker | USC | |
| LeeVone Spencer | Linebacker | Prairie View A&M | |
| Bill Stansfield | Defensive tackle | Penn State | |
| Ben Stephens | Defensive back | Grambling | |
| Dan Thatcher | Kicker | Occidental | |
| Lee Thomas | Defensive end | Jackson State | |
| Paul Tollefson | Tackle | UC Santa Barbara |
| Week | Date | Opponent | Result | Record | Venue | Attendance | Recap | |
|---|---|---|---|---|---|---|---|---|
| 1 | September 20 | Baltimore Colts | L 14–16 | 0–1 | San Diego Stadium | 47,782 | Recap | |
| 2 | September 27 | Oakland Raiders | T 27–27 | 0–1–1 | San Diego Stadium | 42,109 | Recap | |
| 3 | October 4 | at Los Angeles Rams | L 10–37 | 0–2–1 | Los Angeles Memorial Coliseum | 69,564 | Recap | |
| 4 | Green Bay Packers | L 20–22 | 0–3–1 | San Diego Stadium | 53,064 | Recap | ||
| 5 | October 18 | at Chicago Bears | W 20–7 | 1–3–1 | Wrigley Field | 45,278 | Recap | |
| 6 | October 25 | Houston Oilers | T 31–31 | 1–3–2 | San Diego Stadium | 41,427 | Recap | |
| 7 | November 1 | at Cleveland Browns | W 27–10 | 2–3–2 | Cleveland Municipal Stadium | 80,047 | Recap | |
| 8 | November 8 | Denver Broncos | W 24–21 | 3–3–2 | San Diego Stadium | 48,327 | Recap | |
| 9 | November 15 | at Boston Patriots | W 16–14 | 4–3–2 | Harvard Stadium | 30,597 | Recap | |
| 10 | November 22 | at Oakland Raiders | L 17–20 | 4–4–2 | Oakland–Alameda County Coliseum | 54,594 | Recap | |
| 11 | November 29 | at Kansas City Chiefs | L 14–26 | 4–5–2 | Municipal Stadium | 50,315 | Recap | |
| 12 | December 6 | Cincinnati Bengals | L 14–17 | 4–6–2 | San Diego Stadium | 41,461 | Recap | |
| 13 | December 13 | at Denver Broncos | T 17–17 | 4–6–3 | Mile High Stadium | 50,959 | Recap | |
| 14 | December 20 | Kansas City Chiefs | W 31–13 | 5–6–3 | San Diego Stadium | 41,379 | Recap |