Toyohashi (豊橋市, Toyohashi-shi^?) is a city located in Aichi Prefecture, Japan.

The city was founded on August 1, 1906. As of January 1, 2010, the city has an estimated population of 383,691 and a density of 1,468.62 persons per km². The total area is 261.26 km² (261,260,000 m²). By size, Toyohashi was Aichi Prefecture's second-largest city until March 31, 2005. It was on April 1, 2005 that Toyota city combined with six peripheral municipalities and saw its total population rise above 400,000 people, thus edging ahead of Toyohashi into second place.

Toyohashi is located in southeastern Aichi Prefecture, and is regarded as the capital of the informal “Higashi-Mikawa Region” of the prefecture. It is bordered by Shizuoka Prefecture to the east, and by Mikawa Bay and the headlands of the Atsumi Peninsula to the west. To the south is the Enshu Bay of the Pacific Ocean. The presence of the warm Kuroshio Current offshore gives the city a temperate climate. The Katahama Jusan-ri Beach (片浜十三里^?) in Toyohashi is a sea turtle nesting spot.