| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Herman Horn•Johannessen |
| Used name | Herman Horn•Johannessen |
| Born | 5 April 1964 in Oslo, Oslo (NOR) |
| Measurements | 174 cm / 72 kg |
| Affiliations | KNS, Oslo (NOR) |
| NOC | Norway |
| Medals | OG |
| Gold | 0 |
| Silver | 0 |
| Bronze | 1 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1988 Summer Olympics | Sailing | NOR |
Herman Horn Johannessen | |||
| Two Person Dinghy, Men (Olympic) | Karl-Einar Jensen | 13 | ||||
| 1992 Summer Olympics | Sailing | NOR |
Herman Horn Johannessen | |||
| Two Person Dinghy, Men (Olympic) | Pål McCarthy | 5 | ||||
| 1996 Summer Olympics | Sailing | NOR |
Herman Horn Johannessen | |||
| Three Person Keelboat, Open (Olympic) | Norway | 9 | ||||
| 2000 Summer Olympics | Sailing | NOR |
Herman Horn Johannessen | |||
| Three Person Keelboat, Open (Olympic) | Norway | 3 | Bronze |