Éternoz (French pronunciation: [etɛʁno]) is a commune in the Doubs department in the Bourgogne-Franche-Comté region in eastern France.^[3]

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Éternoz
Commune
The village and the Vau waterfall
Location of Éternoz
Éternoz Show map of France Éternoz Show map of Bourgogne-Franche-Comté
Coordinates: 47°00′28″N 6°01′49″E
Country	France
Region	Bourgogne-Franche-Comté
Department	Doubs
Arrondissement	Besançon
Canton	Ornans
Intercommunality	Loue-Lison
Government
• Mayor (2020–2026)	Christophe Garnier[1]
Area 1	29.26 km2 (11.30 sq mi)
Population  (2021)[2]	324
• Density	11/km2 (29/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	25223 /25330
Elevation	315–670 m (1,033–2,198 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

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Eternoz is 26 kilometres from Besancon, the department capital. It sits on the second plateau of the Jura massif at an altitude of 549 m (1,801 ft).^[4] The River Vau passes through the village and plunges down a 40 meter waterfall on the edge of the village before joining the river Lison.^[5]

In 1973, the commune Éternoz absorbed the following former communes:^[3][6]

• Alaise (41 inhabitants in 2020)
• Coulans-sur-Lizon (22 inhabitants)
• Doulaize (20 inhabitants)
• Refranche (18 inhabitants)

The parish church, dedicated to Saint Laurent, was built in 1804. It has a single nave and belltower, with a round dome that is unusual in the region.

The chateau of Refranche was built in the 16th century by a branch of the Eternoz family. Until recently, only part of the main building and a tower remained, but it has recently been renovated.^[7]

For three generations, the Société Garnier had its workshop in Eternoz. In 1913, a local blacksmith, Jean Garnier, founded a forge that made and sold ploughs. By 1953, the business had sold 5000 ploughs, but this progressively gave way to the sale of more innovative and diverse farm machinery from the 1960s onwards. The resulting expansion led to the decision, in 2008, to move the company to new and larger premises 15 km away in Levier.^[8]

• Alfred Billot (1925-1965), was Catholic priest, and missionary in Cameroon.^[9]
• Marie-Léone Bordy (1921-1992), a nun of the congregation of the Filles de Notre-Dame du Sacré-cœur in Issoudun, was assassinated in Djoum, Cameroun.^[10]
• Auguste Castan, librarian, historian, and archaeologist; excavated Roman remains in Besançon on the site of which a square is named in his honour.
• Édouard Clerc, historian.
• Georges Colomb (1856-1945), a botanist, science populariser, and pioneer of comics.^[11]
• Alphonse Delacroix (1807-1878), architect.
• Pierre-Michel Duffieux (1891-1976), a physicist and founder of Fourier Optics. Lecturer and researcher at the University of Franche-Comté. Lived at Coulans-sur-Lison.
• Emmanuelle Garnier (1964 - ), professor and currently president of the University of Toulouse-Jean Jaurès, originally from Doulaize.^[12]
• Pierre Lorius (1925-2014), a professional footballer (goalkeeper). Played with Racing Besançon (1952-1954) FC Sochaux (1949-1952) and Lyon OU (1945-1947).^[13]
• Jean Mennerat (1917-2007), a member of the French resistance, lived in Coulans-sur-Lison. Owned the world's largest collection of books about chess (27,500 volumes) which he bequeathed to the city of Belfort.^[14]
• Jules Quicherat (1814-1882), historian, archaeologist, professor at the École nationale des chartes.

The name of the village has evolved. It has been called Esternoz (1262), Esternos (1275), Esternoch (1280), Esternoz dessoz Monmaour (1294), and Sternol (14th century). The name appears to be of Germanic origin and may mean "valley of beech trees".^[15]

List of mayors

• Communes of the Doubs department