Japan at the 1984 Winter Olympics
Japan competed at the 1984 Winter Olympics in Sarajevo, Yugoslavia.
Medalists
Alpine skiing
;MenBiathlon
;Men| Event | Athlete | Misses 1 | Time | Rank |
| 10 km Sprint | Isao Yamase | 4 | 35:57.0 | 47 |
| 10 km Sprint | Yoshinobu Murase | 3 | 35:35.9 | 43 |
| 10 km Sprint | Shoichi Kinoshita | 1 | 34:12.2 | 30 |
| Event | Athlete | Time | Penalties | Adjusted time 2 | Rank |
| 20 km | Isao Yamase | 1'18:09.6 | 7 | 1'25:09.6 | 42 |
| 20 km | Shoichi Kinoshita | 1'16:49.8 | 7 | 1'23:49.8 | 39 |
| 20 km | Yoshinobu Murase | 1'17:39.1 | 6 | 1'23:39.1 | 38 |
;Men's 4 x 7.5 km relay
Bobsleigh
Cross-country skiing
;Men;Men's 4 × 10 km relay
Figure skating
;Men| Athlete | CF | SP | FS | TFP | Rank |
| Masaru Ogawa | 16 | 14 | 14 | 29.2 | 14 |
;Women
| Athlete | CF | SP | FS | TFP | Rank |
| Masako Kato | 21 | 18 | 19 | 38.8 | 19 |
;Ice Dancing
| Athletes | CD | OD | FD | TFP | Rank |
| Noriko Sato Tadayuki Takahashi | 16 | 16 | 17 | 33.0 | 17 |
Luge
;MenDoubles
;Women
Nordic combined
Events:- normal hill ski jumping
- 15 km cross-country skiing
Ski jumping
Speed skating
;Men;Women