Gamagōri (蒲郡市, Gamagōri-shi) is a city in Aichi Prefecture, Japan. As of 1 October 2019, the city had an estimated population of 80,063 in 32,800 households, and a population density of 1,407 persons per km2. The total area of the city is 56.92 square kilometres (21.98 sq mi).