Derek O'Brien
- Date of birth/Age: Nov 14, 1979 (44)
- Place of birth:
Tralee
- Citizenship:
Ireland
- Height: 1,85 m
- Position: Left Midfield
Record vs. ...
This overview shows the player's personal record against all the clubs they have played against so far. In addition to wins, draws and defeats, it also shows goals, assists and yellow and red cards.
| Club | W | D | L | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 | Harps | 23 | 12 | 6 | 5 | - | 1 | 1 | - | 1 | |
 | Bray | 20 | 8 | 6 | 6 | 1 | 3 | 3 | 1 | - | |
 | Shamro | 20 | 3 | 5 | 12 | 1 | - | 1 | - | - | |
 | Bohs | 18 | 3 | 2 | 13 | 2 | 1 | 1 | - | 1 | |
 | Droghe | 17 | 6 | 4 | 7 | 3 | 1 | 1 | - | - | |
 | Athlon | 17 | 7 | 5 | 5 | 3 | 1 | - | - | - | |
 | UCD | 17 | 9 | 3 | 5 | 1 | - | 2 | - | - | |
 | Sligo | 17 | 4 | 5 | 8 | - | 1 | - | - | - | |
 | Dundal | 17 | 2 | 8 | 7 | - | - | 2 | - | - | |
 | WFC | 16 | 4 | 3 | 9 | 1 | - | 1 | - | - | |
 | Derry | 16 | 5 | 4 | 7 | 1 | - | 2 | - | - | |
 | Saints | 15 | 5 | 2 | 8 | 4 | 3 | 2 | - | - | |
 | Cork | 15 | 0 | 5 | 10 | 2 | 1 | - | - | - | |
 | LTFC | 13 | 7 | 3 | 3 | 1 | 1 | 1 | - | - | |
 | Cobh | 12 | 3 | 6 | 3 | 3 | 1 | 2 | - | - | |
 | Kilken | 11 | 7 | 1 | 3 | - | - | - | - | - | |
 | Mervue | 11 | 5 | 2 | 4 | - | - | 2 | - | - | |
 | Kildar | 10 | 4 | 5 | 1 | 2 | - | - | - | - | |
 | Wexfor | 10 | 5 | 2 | 3 | - | - | - | 1 | - | |
 | MUFC | 9 | 7 | 2 | 0 | 2 | - | 1 | - | - | |
 | Shelb | 9 | 3 | 2 | 4 | - | 1 | - | - | - | |
 | Salthi | 7 | 6 | 1 | 0 | - | 1 | - | - | - | |
 | Limeri | 6 | 4 | 2 | 0 | 1 | - | - | - | - | |
 | Galway | 4 | 0 | 1 | 3 | - | - | 1 | - | - | |
 | Dublin | 3 | 0 | 0 | 3 | 2 | - | - | - | - | |