Graham Johncock
- Position: Defender
- DOB: 21/10/1982 (Age 25)
- Height: 180cm
- Weight: 84kgs
- Squad Number: 18
Career Single Game Records
- Most Goals: 6 - Adelaide v St Kilda on July 27th 2003
- Most Disposals: 31 - Geelong v Adelaide on August 12th 2007
- Most Marks: 14 - Adelaide v Hawthorn on June 14th 2008
- Most Tackles: 10 - Sydney v Adelaide on July 10th 2004
Career Statistics
| Year | Club | Gms | Kck | Hbl | Dsp | Mks | Tck | FF | FA | Hit | Gls | Bhd | |
| 2008 | Adelaide | 21 | 247 | 135 | 382 | 116 | 46 | 22 | 7 | 0 | 7 | 9 | View |
| 2007 | Adelaide | 17 | 175 | 120 | 295 | 84 | 34 | 16 | 7 | 0 | 3 | 1 | View |
| 2006 | Adelaide | 24 | 323 | 161 | 484 | 162 | 35 | 13 | 13 | 0 | 8 | 5 | View |
| 2005 | Adelaide | 15 | 161 | 77 | 238 | 69 | 37 | 14 | 9 | 0 | 6 | 5 | View |
| 2004 | Adelaide | 22 | 237 | 100 | 337 | 114 | 63 | 19 | 12 | 1 | 21 | 15 | View |
| 2003 | Adelaide | 23 | 222 | 109 | 331 | 95 | 63 | 19 | 24 | 0 | 30 | 17 | View |
| 2002 | Adelaide | 25 | 181 | 63 | 244 | 87 | 54 | 12 | 15 | 0 | 14 | 8 | View |
| Total | 147 | 1546 | 765 | 2311 | 727 | 332 | 115 | 87 | 1 | 89 | 60 |
