Tosa

 ( Japanese-language Surnames ) 

Tosa may refer to:

• Tosa, Kōchi a city in Kōchi Prefecture, Japan
• Tosa, Kōchi (town), a town in Kōchi Prefecture, Japan
• Tosa District, Kōchi
• Tosa province and Tosa Domain, now known as Kōchi Prefecture
• Wauwatosa, known to locals as Tosa, a city in Wisconsin

• born 1955, Japanese shogi player
• Tosa Mitsunobu
• Tosa Mitsuoki
• Reiko Tosa, marathon runner
• born 1942, Japanese diver

• Tosa dialect
• Tosa-mi, or tataki, a cooking technique
• Tosa (dog), a Japanese dogfighting breed
• Tosa-class battleship of Imperial Japan
• Japanese battleship Tosa, the lead ship of the Tosa class
• TOSA (bus), a concept electric bus
• The Zaurus model SL-6000

• Cima Tosa, a peak in the Brenta Dolomites
• Tosa d'Alp, or La Tosa, in the Pyrenees
• Tosa corner or hairpin of the San Marino Grand Prix race track
• Tosia, name
• Toska (disambiguation)