1998 Madrid motorcycle Grand Prix
The 1998 Madrid motorcycle Grand Prix was the sixth round of the 1998 Grand Prix motorcycle racing season. It took place on 14 June 1998 at the Circuito Permanente del Jarama.250 cc classification
125 cc classification
Championship standings after the race (500cc)
Below are the standings for the top five riders and constructors after round six has concluded.
;Riders' Championship standings
;Constructors' Championship standings
| Constructor | Points |
| 1 |  Honda | 150 |
| 2 | Yamaha | 75 |
| 3 | Suzuki | 57 |
| 4 |  Modenas KR3 | 34 |
| 5 |  MuZ | 6 |
- Note: Only the top five positions are included for both sets of standings.
Àlex Crivillé
Max Biaggi
Mick Doohan