1991 Spanish motorcycle Grand Prix

  1991 Spanish Grand Prix

Race details
Race 4 of 15 races in the 1991 Grand Prix motorcycle racing season
Date	12 May 1991
Official name	Gran Premio de España[1]
Location	Circuito de Jerez
Course	Permanent racing facility 4.218 km (2.621 mi)
500cc
Pole position Rider Wayne Rainey Yamaha Time 1:46.881 Fastest lap Rider Wayne Rainey Yamaha Time 1:47.615 Podium First Michael Doohan Honda Second John Kocinski Yamaha Third Wayne Rainey Yamaha
250cc
Pole position Rider Helmut Bradl Honda Time 1:49.108 Fastest lap Rider Helmut Bradl Honda Time 1:50.002 Podium First Helmut Bradl Honda Second Luca Cadalora Honda Third Loris Reggiani Aprilia
125cc
Pole position Rider Noboru Ueda Honda Time 1:54.647 Fastest lap Rider Ezio Gianola Derbi Time 1:54.038 Podium First Noboru Ueda Honda Second Fausto Gresini Honda Third Loris Capirossi Honda
Sidecar (B2A)
Pole position Rider Alain Michel Krauser Time 1:50.817 Fastest lap Rider Steve Webster Krauser Time 1:52.237 Podium First Steve Webster Krauser Second Paul Güdel LCR-Krauser Third Steve Abbott LCR-Krauser

The 1991 Spanish motorcycle Grand Prix was the fourth round of the 1991 Grand Prix motorcycle racing season. It took place on the weekend of 10–12 May 1991 at the Jerez circuit.