The 1992 Japanese motorcycle Grand Prix was the first round of the 1992 Grand Prix motorcycle racing season. It took place on the weekend of 27–29 March 1992 at the Suzuka Circuit.
Ralf Waldmann, riding his bike at the 125cc race, which he went on to win.
The 1992 Grand Prix motorcycle racing season was the 44th F.I.M. Road Racing World Championship season. Honda secured the constructor's title in all three categories.
Wayne Rainey (pictured at Suzuka) became the 1992 500cc world champion