| Grand Prix: | Dutch |
| Flag: | Netherlands |
| Official Name: | Dutch TT[1] [2] [3] |
| Location: | TT Circuit Assen |
| Course Mi: | 3.759 |
| Course Km: | 6.049 |
| Race No: | 8 |
| Season No: | 15 |
| Date: | 30 June |
| Year: | 1990 |
| Pole Rider 500 Country: | USA |
| Pole Time 500: | 2:03.207 |
| Fast Rider 500 Country: | USA |
| Fast Time 500: | 2:03.480 |
| First Rider 500 Country: | USA |
| Second Rider 500 Country: | USA |
| Third Rider 500 Country: | USA |
| Pole Rider 250 Country: | Spain |
| Pole Time 250: | 2:08.926 |
| Fast Rider 250 Country: | USA |
| Fast Time 250: | 2:09.448 |
| First Rider 250 Country: | USA |
| Second Rider 250 Country: | Spain |
| Third Rider 250 Country: | Netherlands |
| Pole Rider 125: | Hans Spaan |
| Pole Rider 125 Country: | Netherlands |
| Pole Time 125: | 2:19.726 |
| Fast Rider 125: | Doriano Romboni |
| Fast Rider 125 Country: | Italy |
| Fast Time 125: | 2:20.214 |
| First Rider 125: | Doriano Romboni |
| First Rider 125 Country: | Italy |
| Second Rider 125: | Bruno Casanova |
| Second Rider 125 Country: | Italy |
| Third Rider 125: | Adi Stadler |
| Third Rider 125 Country: | Germany |
The 1990 Dutch TT was the eighth round of the 1990 Grand Prix motorcycle racing season. It took place on the weekend of 28 - 30 June 1989 at the TT Circuit Assen located in Assen, Netherlands.[4] Kevin Schwantz won the race, with Wayne Rainey in close second and Eddie Lawson in third.
| Pos. | Rider | Team | Manufacturer | Time/Retired | Points | |||
|---|---|---|---|---|---|---|---|---|
| 1 |  Kevin Schwantz | Lucky Strike Suzuki | Suzuki | 43:35.097 | 20 | |||
| 2 | Wayne Rainey | Marlboro Team Roberts | Yamaha | +0.636 | 17 | |||
| 3 | Eddie Lawson | Marlboro Team Roberts | Yamaha | +25.450 | 15 | |||
| 4 |  Mick Doohan | Rothmans Honda Team | Honda | +44.799 | 13 | |||
| 5 |  Niall Mackenzie | Lucky Strike Suzuki | Suzuki | +56.530 | 11 | |||
| 6 |  Juan Garriga | Ducados Yamaha | Yamaha | +1:04.564 | 10 | |||
| 7 |  Christian Sarron | Sonauto Gauloises | Yamaha | +1:06.152 | 9 | |||
| 8 |  Pierfrancesco Chili | Team ROC Elf La Cinq | Honda | +1:28.150 | 8 | |||
| 9 | Ron Haslam | Cagiva Corse | Cagiva | +1:43.893 | 7 | |||
| 10 |  Alex Barros | Cagiva Corse | Cagiva | +1 Lap | 6 | |||
| 11 | Jean Philippe Ruggia | Sonauto Gauloises | Yamaha | +1 Lap | 5 | |||
| 12 |  Eddie Laycock | Millar Racing | Honda | +1 Lap | 4 | |||
| 13 |  Cees Doorakkers | HRK Motors | Honda | +1 Lap | 3 | |||
| 14 | Marco Papa | Team ROC Elf La Cinq | Honda | +1 Lap | 2 | |||
| 15 |  Karl Truchsess | Honda | +2 Laps | 1 | ||||
| 16 |  Nicholas Schmassman | Team Schmassman | Honda | +2 Laps | ||||
| 17 |  Eero Kuparinen | Honda | +3 Laps | |||||
| 18 | Randy Mamola | Cagiva Corse | Cagiva | +4 Laps | ||||
| Ret | Wayne Gardner | Rothmans Honda Team | Honda | Retirement | ||||
| Ret |  Norihiko Fujiwara | Yamaha Motor Company | Yamaha | Retirement | ||||
| Ret | Vittorio Scatola | Team Elit | Paton | Retirement | ||||
| Sources:[5] [6] | ||||||||