Team Japan Roster @ Ice Hockey World Championships 2003
| GOALIES | ||||||||
|---|---|---|---|---|---|---|---|---|
| Name | Pos | Age | Birthdate | Birthplace | HT | WT | SC | |
 | Jiro Nihei | G | 32 | 1971-03-09 | Stockholm, Sweden | 5'8" | 165 | R |
| Masahito Haruna | G | 29 | 1973-07-16 | 6'0" | 168 | L | |
| DEFENSEMEN | ||||||||
|---|---|---|---|---|---|---|---|---|
| Name | Pos | Age | Birthdate | Birthplace | HT | WT | SC | |
| Fumitaka Miyauchi | D | 30 | 1972-11-06 | Sapporo, Japan | 5'11" | 176 | L |
| Koichi Yamazaki | D | 26 | 1976-05-01 | 5'10" | 165 | L | |
| Tetsuya Saito | D | 19 | 1983-12-14 | Kushiro, Japan | 5'9" | 165 | R |
| Kengo Ito | D | 24 | 1978-12-04 | Kushiro, Japan | 5'11" | 179 | L |
| Joel Oshiro | D | 31 | 1971-07-28 | Lethbridge, Alberta | 5'10" | 172 | L |
| Makoto Kawashima | D | 23 | 1979-05-02 | Obihiro, Japan | 5'11" | 181 | L |
| Nobuhiro Sugawara | D | 28 | 1975-04-09 | 5'11" | 181 | L | |
| Daniel Daikawa | D | 31 | 1971-07-30 | Apple Valley, Minnesota | 5'11" | 187 | R |
| Yutaka Kawaguchi | D | 30 | 1973-04-05 | Kisarazu, Japan | 5'9" | 174 | R |
| Keiji Sasaki | D | 25 | 1977-12-18 | 5'8" | 159 | L | |
| FORWARDS | ||||||||
|---|---|---|---|---|---|---|---|---|
| Name | Pos | Age | Birthdate | Birthplace | HT | WT | SC | |
| Yosuke Kon | F | 24 | 1978-09-21 | 5'11" | 172 | L | |
| Tomohito Kobayashi | F | 28 | 1974-04-28 | Saitama, Japan | 5'8" | 163 | L |
| Matthew Kabayama | F | 37 | 1965-11-18 | Coaldale, Alberta | 5'6" | 172 | R |
| Shuji Masuko | F | 24 | 1978-07-08 | 5'9" | 196 | R | |
| Takeshi Saito | F | 22 | 1981-03-08 | Kushiro, Japan | 5'9" | 174 | R |
| Daisuke Obara | F | 21 | 1981-06-04 | Kushiro, Japan | 5'9" | 176 | L |
| Kunihiko Sakurai | F | 31 | 1972-04-11 | Tomakomai, Japan | 6'0" | 194 | R |
| Takahito Suzuki | F | 27 | 1975-08-17 | Tomakomai, Japan | 5'8" | 165 | R |
| Ryan Kuwabara | F | 31 | 1972-03-23 | Hamilton, Ontario | 6'1" | 201 | R |
| Masatoshi Ito | F | 24 | 1978-07-14 | 5'9" | 154 | L | |
| Chris Yule | F | 28 | 1975-03-29 | Edmonton, Alberta | 5'9" | 154 | L |
| Tomohiko Uchiyama | F | 23 | 1979-10-13 | Kushiro, Japan | 5'8" | 161 | L |
Post-1980s IIHF World Championship stats sourced from: IIHF Official Website and the Official Guide & Record Books of the Finnish Ice Hockey Federation.
Pre-1980s stats sourced primarily from the wonderful Russian Hockey site https://ice-hockey-stat.com/ and their beautifully documented international hockey history.