| Club: | Júbilo Iwata |
| Season: | 1998 |
| Manager: |  Valmir |
| Stadium: | Júbilo Iwata Stadium |
| League: | J.League |
| League Result: | Runners-up |
| Cup1: | Emperor's Cup |
| Cup1 Result: | Quarterfinals |
| Cup2: | J.League Cup |
| Cup2 Result: | Champions |
| League Topscorer: |  Masashi Nakayama (36) |
| Pattern La1: | _Jubilo Iwata 1998 - 1999 HOME FP |
| Pattern B1: | _Jubilo Iwata 1998 - 1999 HOME FP |
| Pattern Ra1: | _Jubilo Iwata 1998 - 1999 HOME FP |
| Pattern Sh1: | _Jubilo Iwata 1998 - 1999 HOME FP |
| Pattern So1: | _Jubilo Iwata 1998 - 1999 HOME FP |
| Socks1: | 40CFFF |
| Pattern La2: | _Jubilo Iwata 1998 - 1999 AWAY FP |
| Pattern B2: | _Jubilo Iwata 1998 - 1999 AWAY FP |
| Pattern Ra2: | _Jubilo Iwata 1998 - 1999 AWAY FP |
| Pattern Sh2: | _Jubilo Iwata 1998 - 1999 AWAY FP |
| Pattern So2: | _Jubilo Iwata 1998 - 1999 AWAY FP |
| Socks2: | 40CFFF |
| Prevseason: | 1997 |
| Nextseason: | 1999 |
1998 Júbilo Iwata season
| Competitions | Position | |
|---|---|---|
| J.League | 2nd / 18 clubs | |
| Emperor's Cup | Quarterfinals | |
| J.League Cup | Champions |
| No. | Pos. | Nat. | Player | D.o.B. (Age) | Height / Weight | J.League | Emperor's Cup | J.League Cup | Total | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |||||||
| 1 | GK | | Yushi Ozaki | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 2 | DF | | Hideto Suzuki | March 21, 1998 | cm / kg | 20 | 1 | |||||||
| 3 | DF | | Masahiro Endo | March 21, 1998 | cm / kg | 6 | 0 | |||||||
| 4 | DF | | Adílson Batista | March 21, 1998 | cm / kg | 23 | 5 | |||||||
| 5 | DF | | Makoto Tanaka | March 21, 1998 | cm / kg | 32 | 2 | |||||||
| 6 | MF | | Toshihiro Hattori | March 21, 1998 | cm / kg | 32 | 1 | |||||||
| 7 | MF | | Hiroshi Nanami | March 21, 1998 | cm / kg | 33 | 7 | |||||||
| 8 | MF | | Dunga | March 21, 1998 | cm / kg | 28 | 6 | |||||||
| 9 | FW | | Masashi Nakayama | March 21, 1998 | cm / kg | 27 | 36 | |||||||
| 10 | MF | | Toshiya Fujita | March 21, 1998 | cm / kg | 33 | 17 | |||||||
| 11 | FW | | Alessandro Oliveira | March 21, 1998 | cm / kg | 9 | 3 | |||||||
| 11 | DF | | Dedimar | March 21, 1998 | cm / kg | 4 | 1 | |||||||
| 12 | GK | | Tomoaki Ōgami | March 21, 1998 | cm / kg | 34 | 0 | |||||||
| 13 | FW | | Nobuo Kawaguchi | March 21, 1998 | cm / kg | 20 | 3 | |||||||
| 14 | DF | | Takahiro Yamanishi | March 21, 1998 | cm / kg | 13 | 0 | |||||||
| 15 | MF | | Akira Konno | March 21, 1998 | cm / kg | 4 | 0 | |||||||
| 16 | GK | | Hiroki Kobayashi | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 17 | DF | | Yoshiro Moriyama | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 18 | FW | | Norihisa Shimizu | March 21, 1998 | cm / kg | 4 | 1 | |||||||
| 19 | FW | | Naohiro Takahara | March 21, 1998 | cm / kg | 20 | 5 | |||||||
| 20 | MF | | Kiyokazu Kudo | March 21, 1998 | cm / kg | 9 | 0 | |||||||
| 21 | GK | | Hiromasa Yamamoto | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 22 | DF | | Kensuke Tsukuda | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 23 | MF | | Takashi Fukunishi | March 21, 1998 | cm / kg | 22 | 2 | |||||||
| 24 | MF | | Koji Sakamoto | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 25 | DF | | Yasushi Kita | March 21, 1998 | cm / kg | 7 | 0 | |||||||
| 26 | FW | | Yoshika Matsubara | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 27 | MF | | Ryuji Ishino | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 28 | DF | | Takuma Koga | March 21, 1998 | cm / kg | 30 | 2 | |||||||
| 29 | MF | | Daisuke Oku | March 21, 1998 | cm / kg | 32 | 12 | |||||||
| 30 | MF | | Kazuki Kuranuki | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 31 | MF | | Takahiro Kawamura | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 32 | FW | | Shinya Hoshido | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 33 | DF | | Hideyuki Taizawa | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 34 | DF | | Tomoki Yamada | March 21, 1998 | cm / kg | 0 | 0 | |||||||
| 35 | MF | | Ken Fujita | March 21, 1998 | cm / kg | 0 | 0 | |||||||