is a city located in Gifu, Japan. , the city had an estimated population of 41,858, and a population density of 41 persons per km<sup>2</sup>, in 15,341 households. The total area of the city was , including Gujo Hachiman, a part of the city that was an independent town until 2004, and has a large summer Bon odori festival, Gujo Odori.
Gujà  is located in west-central Gifu Prefecture. The headwaters of the Nagara River are in the city.
Gujà Â's waterways operate the same way as they did in the 17th century. The canals and fountains are still used for washing rice, vegetables, and laundry. Townspeople cooperate to keep the canals clean and the water fresh. As a result of their efforts, Gujà Â's drinking water is a source of local pride.
Gujà  Hachiman is in a valley where three major fast-running rivers meet: the Yoshida, the Nagara and the Kodara. The local ayu, soba, and sake all depend on the water for their flavors. Some residents still use the town's unique system of small waterways to wash laundry and dishes, following a set of very strict rules that describe what may be washed where. This practice has survived for centuries and ensures that all households have access to clean water.
The city has a climate characterized by hot and humid summers, and mild winters (Köppen climate classification Cfa). The average annual temperature in Gujà  is . The average annual rainfall is with July as the wettest month. The temperatures are highest on average in August, at around , and lowest in January, at around .
According to Japanese census data, the population of Gujà  has steadily declined over the past 50 years.
Historically, area around Gujà  was part of the former Mino Province. During the Edo period, most of the area was under the control of Gujà  Domain of the Tokugawa shogunate. Post-Meiji restoration cadastral reforms, the area was organised into Gujà  District, Gifu. The town of Hachiman was created on July 1, 1889, with the establishment of the modern municipalities system. The modern city of Gujà  was established on March 1, 2004, from the combining the towns of Hachiman, Shirotori and Yamato, and the villages of Meihà Â, Minami, Takasu and Wara (all from Gujà  District).
Gujà  has a mayor-council form of government with a directly elected mayor and a unicameral city assembly of 18 members.
Gujà  is a leading producer of food replicas in Japan. Many of the food replicas, used by restaurants to decorate their windows and inform patrons of their dishes, are produced here.
Gujà  has 22 public elementary schools, eight public middle schools operated by the city government, two public high school operated by the Gifu Prefectural Board of Education.
The dance festival — Gujà  Odori — started over 400 years ago and continues today. During the four days of Obon in mid-August, dances continue all night. The dances begin on the same night as Kyoto's Gion Festival and continue for 30 nights. They begin at the Yasaka Shrine and move to another shrine each night. The Gujà  Odori Preservation Society tell musical stories through an o-hayashi, which consists of a soloist, a shamisen, a taiko, and a shakuhachi. Listeners participate by dancing around the stage. During Urabon (August 13 to 16) the dancing continues until 5 a.m. More than 20,000 visitors come to town for the odori.