| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Daniel Gideon Jacobus "Jaco"•Henn | 
| Used name | Jaco•Henn | 
| Born | 17 December 1974 in Johannesburg, Gauteng (RSA) | 
| Measurements | 199 cm / 85 kg | 
| Affiliations | Pretoria | 
| NOC |   South Africa | 
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1996 Summer Olympics | Shooting |  RSA | 
Jaco Henn | |||
| Small-Bore Rifle, Three Positions, 50 metres, Men (Olympic) | =22 | |||||
| Small-Bore Rifle, Prone, 50 metres, Men (Olympic) | =26 | |||||
| 2000 Summer Olympics | Shooting |  RSA | 
Jaco Henn | |||
| Small-Bore Rifle, Three Positions, 50 metres, Men (Olympic) | 36 | |||||
| Small-Bore Rifle, Prone, 50 metres, Men (Olympic) | =44 |