Maizuru Naval District was one of four main administrative districts of the pre-war Imperial Japanese Navy. Its territory included the entire Sea of Japan coastline from northern Kyūshū to western Hokkaidō.

Maizuru is a city in Kyoto Prefecture, Japan. As of 28 February 2022, the city had an estimated population of 78,644 in 34817 households and a population density of 230 persons per km². The total area of the city is 342.13 square kilometres (132.10 sq mi).