| Personal information | |||
|---|---|---|---|
| Full name | Derek Peter Geary | ||
| Date of birth | 19 June 1980 | ||
| Place of birth | Dublin, Republic of Ireland | ||
| Height | 5 ft 6 in (1.68 m) | ||
| Position(s) | Full Back | ||
| Youth career | |||
| 1997 | Rivermount Boys | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 1997–2004 | Sheffield Wednesday | 104 | (0) |
| 2004 | Stockport County | 13 | (0) |
| 2004–2010 | Sheffield United | 94 | (1) |
| Total | 211 | (1) | |
| Managerial career | |||
| 2016–2021 | Sheffield United U18s | ||
| *Club domestic league appearances and goals | |||
Derek Peter Geary (born 19 June 1980 in Dublin, Republic of Ireland) is an Irish retired footballer, who played as a full-back. He is currently the Sheffield United Academy manager.