The1919–20 season was the 11th in the history of theIsthmian League, an Englishfootball competition.
Casuals,Civil Service andTufnell Park were newly admitted, while four other clubs returned to the league after missing the short1919 season.Dulwich Hamlet were champions, winning their first Isthmian League title.
| Season | 1919–20 |
|---|---|
| Champions | Dulwich Hamlet |
| Matches | 132 |
| Goals | 507 (3.84 per match) |
←1919 1920–21 → | |
| Pos | Team | Pld | W | D | L | GF | GA | GR | Pts |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Dulwich Hamlet | 22 | 15 | 3 | 4 | 58 | 16 | 3.625 | 33 |
| 2 | Nunhead | 22 | 14 | 5 | 3 | 48 | 26 | 1.846 | 33 |
| 3 | Tufnell Park | 22 | 12 | 4 | 6 | 45 | 32 | 1.406 | 28 |
| 4 | Ilford | 22 | 13 | 1 | 8 | 63 | 42 | 1.500 | 27 |
| 5 | Oxford City | 22 | 12 | 3 | 7 | 63 | 51 | 1.235 | 27 |
| 6 | London Caledonians | 22 | 10 | 3 | 9 | 32 | 30 | 1.067 | 23 |
| 7 | Leytonstone | 22 | 8 | 3 | 11 | 50 | 43 | 1.163 | 19 |
| 8 | Clapton | 22 | 8 | 3 | 11 | 38 | 44 | 0.864 | 19 |
| 9 | Civil Service | 22 | 7 | 4 | 11 | 35 | 40 | 0.875 | 18 |
| 10 | Woking | 22 | 6 | 3 | 13 | 36 | 42 | 0.857 | 15 |
| 11 | West Norwood | 22 | 5 | 4 | 13 | 19 | 53 | 0.358 | 14 |
| 12 | Casuals | 22 | 3 | 2 | 17 | 20 | 88 | 0.227 | 8 |