Fort Catinat du Larmont supérieur, Military fortification in Pontarlier, France.

Fort Catinat du Larmont supérieur is a stone fort built between 1880 and 1883 by the Adrien Hallier company at 1,170 metres above Pontarlier. Its entrance facade has a tall central archway between two flat pilasters, with a stone band inscribed "FORT CATINAT" and "DU LARMONT SUPERIEUR", flanked by the dates 1880 and 1883. The plan is between a pentagon and a parallelogram, and the defensive ditch originally ran on only three sides.

The fort was built between 1880 and 1883 as part of the Séré de Rivières defensive system along the Swiss border. It formed a linked defensive network with Fort Larmont inférieur and Fort de Joux to protect the frontier.

The name Catinat was assigned in 1887 by War Minister Georges Boulanger, who renamed forts after military figures; the name of Marshal Nicolas de Catinat was carved on the entrance pediment. His successor Théophile Ferron revoked the decree that October, but the Boulanger name stayed on the stone. Visitors can read "FORT CATINAT" above the arch.

The fort stands at 1,170 m above Pontarlier, reached on foot through mountain terrain; wear sturdy shoes and weather-appropriate clothing. The entrance facade bears the inscription "FORT CATINAT" with the dates 1880 and 1883, and the doors are marked "DEFENSE D'ENTRER". The site is exposed, so check conditions before setting out.

On 17 June 1940 the garrison of 122 men and 8 officers held out for six hours under 105 and 210 mm shelling, with two of four machine guns destroyed and communications cut at 13:15. Six German assaults were repulsed, including one down into the ditches on ropes, before the surrender at 20:00, when German troops presented arms.