The 1991 Individual Speedway World Championship was the 46th edition of the official World Championship to determine the world champion rider. Diminutive Danish rider Jan O. Pedersen won his first and only World Championship with a 15-point maximum from his five rides, the last time a rider would have a perfect score in the Final. Local favourite Tony Rickardsson finished second with 12 points, with triple champion Hans Nielsen of Denmark finishing third on 11 points after defeating fellow Dane Tommy Knudsen in a run-off. Defending champion Per Jonsson finished in ninth place with 7 points.

First round

British qualifiers

Second round

Australian qualification

New Zealand qualification

British semi-finals

Third round

Continental preliminary round

Swedish qualification

Australian Final

New Zealand Final

British Final

Fourth round

Danish Final

Finnish qualifying

Norwegian Final

Swedish Final

Continental quarter-finals

American Final

Commonwealth Final

• Todd Wiltshire replaced Glyn Taylor

Fifth round

Continental semi-finals

Nordic Final

Overseas Final

Sixth round

World Semi-Finals

• First reserve Tony Rickardsson replaced injured qualifier Andy Smith

World final

Classification