The table below shows Leyton Orient's overall record against each of their League One opponents.
| Opposition | P | W | D | L | F | A |
|---|---|---|---|---|---|---|
| AFC Bournemouth | 10 | 4 | 2 | 4 | 14 | 20 |
| AFC Wimbledon | 2 | 1 | 0 | 1 | 5 | 5 |
| Barnsley | 8 | 2 | 2 | 4 | 13 | 14 |
| Birmingham City | 2 | 0 | 0 | 2 | 1 | 4 |
| Blackpool | 8 | 3 | 2 | 3 | 7 | 7 |
| Bolton Wanderers | 6 | 1 | 1 | 4 | 7 | 10 |
| Bradford City | 8 | 2 | 1 | 5 | 8 | 12 |
| Brentford | 12 | 5 | 3 | 4 | 14 | 15 |
| Brighton and Hove Albion | 10 | 1 | 6 | 3 | 8 | 18 |
| Bristol City | 6 | 0 | 3 | 3 | 6 | 11 |
| Bristol Rovers | 12 | 8 | 1 | 3 | 29 | 13 |
| Burton Albion | 6 | 1 | 3 | 2 | 8 | 6 |
| Bury | 4 | 3 | 1 | 0 | 6 | 1 |
| Cambridge United | 4 | 4 | 0 | 0 | 8 | 1 |
| Cardiff City | 2 | 0 | 1 | 1 | 4 | 5 |
| Carlisle United | 18 | 8 | 5 | 5 | 33 | 24 |
| Charlton Athletic | 10 | 3 | 0 | 7 | 7 | 14 |
| Cheltenham Town | 8 | 5 | 0 | 3 | 12 | 7 |
| Chesterfield | 6 | 2 | 3 | 1 | 6 | 5 |
| Colchester United | 14 | 4 | 1 | 9 | 14 | 21 |
| Coventry City | 6 | 3 | 1 | 2 | 7 | 6 |
| Crawley Town | 8 | 3 | 0 | 5 | 13 | 10 |
| Crewe Alexandra | 12 | 7 | 4 | 1 | 21 | 7 |
| Dagenham and Redbridge | 2 | 0 | 1 | 1 | 1 | 3 |
| Derby County | 2 | 0 | 0 | 2 | 0 | 6 |
| Doncaster Rovers | 10 | 2 | 3 | 5 | 10 | 14 |
| Exeter City | 12 | 5 | 4 | 3 | 20 | 13 |
| Fleetwood Town | 4 | 0 | 1 | 3 | 1 | 4 |
| Gillingham | 10 | 3 | 4 | 3 | 21 | 18 |
| Hartlepool United | 12 | 5 | 2 | 5 | 12 | 14 |
| Hereford United | 2 | 1 | 0 | 1 | 3 | 3 |
| Huddersfield Town | 16 | 4 | 3 | 9 | 16 | 28 |
| Leeds United | 6 | 0 | 3 | 3 | 5 | 9 |
| Leicester City | 2 | 0 | 0 | 2 | 1 | 6 |
| Lincoln City | 6 | 2 | 0 | 4 | 6 | 8 |
| Luton Town | 4 | 2 | 1 | 1 | 4 | 5 |
| Mansfield Town | 4 | 2 | 1 | 1 | 7 | 6 |
| Millwall | 8 | 4 | 1 | 3 | 11 | 7 |
| Milton Keynes Dons | 14 | 5 | 2 | 7 | 18 | 26 |
| Northampton Town | 12 | 3 | 3 | 6 | 14 | 20 |
| Norwich City | 2 | 1 | 0 | 1 | 2 | 5 |
| Nottingham Forest | 4 | 1 | 0 | 3 | 4 | 9 |
| Notts County | 10 | 4 | 3 | 3 | 15 | 12 |
| Oldham Athletic | 18 | 6 | 7 | 5 | 23 | 23 |
| Oxford United | 2 | 1 | 0 | 1 | 4 | 4 |
| Peterborough United | 14 | 3 | 4 | 7 | 17 | 22 |
| Plymouth Argyle | 4 | 3 | 0 | 1 | 8 | 4 |
| Port Vale | 12 | 7 | 1 | 4 | 18 | 16 |
| Portsmouth | 4 | 3 | 0 | 1 | 7 | 6 |
| Preston North End | 8 | 3 | 3 | 2 | 9 | 7 |
| Reading | 6 | 4 | 1 | 1 | 10 | 5 |
| Rochdale | 6 | 3 | 1 | 2 | 9 | 7 |
| Rotherham United | 8 | 2 | 1 | 5 | 7 | 11 |
| Scunthorpe United | 10 | 2 | 2 | 6 | 15 | 24 |
| Sheffield United | 8 | 0 | 6 | 2 | 7 | 10 |
| Sheffield Wednesday | 4 | 1 | 0 | 3 | 4 | 3 |
| Shrewsbury Town | 8 | 7 | 0 | 1 | 14 | 5 |
| Southampton | 4 | 0 | 2 | 2 | 4 | 7 |
| Southend United | 6 | 1 | 2 | 3 | 6 | 12 |
| Stevenage | 12 | 7 | 2 | 3 | 11 | 8 |
| Stockport County | 8 | 3 | 2 | 3 | 10 | 9 |
| Swansea City | 4 | 0 | 1 | 3 | 1 | 10 |
| Swindon Town | 14 | 6 | 5 | 3 | 21 | 14 |
| Tranmere Rovers | 16 | 7 | 2 | 7 | 21 | 20 |
| Walsall | 16 | 7 | 7 | 2 | 18 | 9 |
| Wigan Athletic | 6 | 2 | 3 | 1 | 5 | 2 |
| Wolverhampton Wanderers | 2 | 0 | 1 | 1 | 2 | 4 |
| Wrexham | 2 | 1 | 1 | 0 | 2 | 1 |
| Wycombe Wanderers | 10 | 4 | 1 | 5 | 12 | 17 |
| Yeovil Town | 16 | 5 | 6 | 5 | 23 | 21 |