Yamaha Corporation (ヤマハ株式会社, Yamaha Kabushiki Gaisha^?) (TYO: 7951) is a Japanese multinational corporation and conglomerate based in Japan with a wide range of products and services, predominantly musical instruments, electronics, motorcycles and power sports equipment.

Yamaha was established in 1887 as a piano and reed organ manufacturer by Torakusu Yamaha as Nippon Gakki Company, Limited (日本楽器製造株式会社, Nippon Gakki Seizō Kabushiki Gaisha^?) (literally Japan Musical Instrument Manufacturing Corporation) in Hamamatsu, Shizuoka prefecture and was incorporated on October 12, 1897. The company's origins as a musical instrument manufacturer is still reflected today in the group's logo—a trio of interlocking tuning forks.

After World War II, company president Genichi Kawakami repurposed the remains of the company's war-time production machinery and the company's expertise in metallurgical technologies to the manufacture of motorcycles. The YA-1 (AKA Akatombo, the "Red Dragonfly"), of which 125 were built in the first year of production (1958), was named in honor of the founder. It was a 125cc, single cylinder, two-stroke, street bike patterned after the German DKW RT125 (which the British munitions firm, BSA, had also copied in the post-war era and manufactured as the Bantam and Harley-Davidson as the Hummer. In 1959, the success of the YA-1 resulted in the founding of Yamaha Motor Co., Ltd.

Valentino Rossi, (born February 16, 1979 in Urbino), is an Italian professional motorcycle racer and multiple MotoGP World Champion. He is one of the most successful motorcycle racers of all time, with nine Grand Prix World Championships to his name – seven of which are in the premier class.

Following his father, Graziano Rossi, Valentino started racing in Grand Prix in 1996 for Aprilia in the 125cc category and won his first World Championship the following year. From there, he moved up to the 250cc category with Aprilia and won the 250cc World Championship in 1999. He won the 500cc World Championship with Honda in 2001, the MotoGP World Championships (also with Honda) in 2002 and 2003, and continued his streak of back-to-back championships by winning the 2004 and 2005 titles after leaving Honda to join Yamaha, before regaining the title in 2008 and retaining it in 2009. He left Yamaha to join Ducati for the 2011 season.

Rossi is first in all time 500 cc/MotoGP race wins standings, with 79 victories, and second in all time overall wins standings with 105 race wins (behind Giacomo Agostini with 122).