List of Snaefell Mountain Course fatal accidents List of fatal accidents involving competitors List of fatal accidents involving competitors

| Rider | Date_ | Place | Race | Event | Machine |
|---|---|---|---|---|---|
| Geoff Sawyer | 24 August 2005 | Union Mills | 2005 Manx Grand Prix | Practice | 496cc Matchless |
| John Loder | 26 August 2005 | 33rd Milestone | 2005 Manx Grand Prix | Practice | 496cc Seeley |
| Eddie Byers | 31 August 2005 | 27th Milestone | 2005 Manx Grand Prix | Junior Classic | 350cc 7R AJS |
| Tim Johnson | 31 August 2005 | Stonebreakers Hut | 2005 Manx Grand Prix | Junior Classic | 349cc Aermacchi |
| John Bourke | 1 September 2005 | Union Mills | 2005 Manx Grand Prix | Junior | 600cc Suzuki |
| Don Leeson | 2 September 2005 | Quarry Bends | 2005 Manx Grand Prix | Ultra-Lightweight | 400cc Honda |
| Jun Maeda | 29 May 2006 | Ballahutchin Hill | 2006 Isle of Man TT | Practice | 1000cc Honda Fireblade |