Pont de la Jonelière, Railway bridge in Nantes, France.

Pont de la Jonelière is a railway viaduct carrying the Nantes-Orléans to Châteaubriant line over the Erdre between Nantes and La Chapelle-sur-Erdre. Its reinforced-concrete arch has a span of 95 metres, designed by Albert Caquot, with masonry approach arches on each bank. The pale grey concrete shows dark streaks, and white painted text reading "NO PASARAN" appears on the side of the upper deck.

The Compagnie du chemin de fer de Paris à Orléans opened the first viaduct in 1877, an iron arch of 95 metres span designed by engineer Geoffroy, with the metalwork supplied by Fives-Lille. German troops blew it up on 11 August 1944. The replacement, designed by Albert Caquot with a reinforced concrete arch of the same span, opened on 3 August 1948.

The bridge's name comes from the nearby Jonelière locality on the Erdre. Its deck carries white painted lettering reading "NO PASARAN", a detail visible from the riverbanks. Since 2014 the structure has carried the Nantes-Châteaubriant tram-train, and from 23 May 2025 also trams of line 1 extended from Ranzay to Babinière.

The bridge carries rail traffic and features separate pathways for pedestrians and cyclists following a 2011 renovation. Access is straightforward from nearby areas along the Erdre.

The bridge's concrete arch spans 95 metres, matching the opening of the iron arch destroyed in 1944. Its designer, Albert Caquot, also worked on the Pont de la Caille and the tidal power station at La Rance. The deck was widened in 2010 for the tram-train, and the bridge now carries both tram-train and tramway services.