Jeffrey Buis (born 27 December 2001) is a Dutch motorcycle racer. He achieved the title of world champion in the Supersport 300 category at the Estoril Circuit in 2020 and at the Algarve International Circuit in 2023.^[1][2]

Buis made his debut at the Yamaha R3 Cup in 2018, winning his inaugural race.^[3] The second round of the Yamaha R3 Cup took place on the Oschersleben track, where he obtained second place.^[4]

On 7 December 2018, Dutch outfit MTM Motoport announced Buis and Dion Otten as their new riders for the 2019 Supersport 300 World Championship,^[5] in addition to Scott Deroue and Robert Schotman, all equipped with Kawasaki Ninja 400s.

In his debut season in a world championship, Buis achieved an eighth place as his best finish at the Magny-Cours circuit and finished the season in fourteenth position overall. He continued in the Supersport 300 world championship also in the 2020 season, always with the MTM Motoport team. He obtained his first podium, a second place, in race 1 of the Portimão grand prix, in a race interrupted by a red flag a few laps from the end, when Ana Carrasco led the race, was followed by Buis who was only 0.057s behind second and with the third classified more than four seconds off the lead. On August 29, Buis took his first pole position and won his first race during the Aragon grand prix and the next day he won his second consecutive race.^[6]

In Portimao 2023, Buis finished as the 11th driver on the track. With a place in the top 13 he would regain the world champion title. This racer from Steenwijkerwold wrote history by being the first person to win two WorldSSP 300 titles. Buis immediately received congratulations from his compatriots Loris Veneman and Ruben Bijman, and was later extensively honored in the parc fermé.

(key) (Races in bold indicate pole position, races in italics indicate fastest lap)

(key) (Races in bold indicate pole position; races in italics indicate fastest lap)