1970 John Player League
| Administrator | Test and County Cricket Board |
|---|---|
| Cricket format | Limited overs cricket(40 overs per innings) |
| Tournament format | League |
| Champions | Lancashire (2nd title) |
| Participants | 17 |
| Matches | 136 |
| Most runs | 625 Harry Pilling (Lancashire) |
| Most wickets | 32 Bob Woolmer (Kent) |
The 1970 John Player League was the second competing of what was generally known as the Sunday League. The competition was won for the second consecutive year by Lancashire County Cricket Club.