Couëron (French: [kwɛʁɔ̃] ⓘ; Gallo: Coéron or Couéron, Breton: Koeron) is a commune in the Loire-Atlantique department in western France.

Couëron is located 10 miles (16 km) west of Nantes, on the North bank of the French longest river, the Loire.

There are four bus lines: The city is also accessed by a railway station (only regional journey) and a ferry which crosses the Loire so as to join the Pellerin.

In the 2012 presidential election, François Hollande (PS) received an astonishing 68.83% of the vote in the second round against then-President, Nicolas Sarkozy (UMP).

This is mainly due to an important Polish community that immigrated in the early 1930s, and the presence of many people of Spanish ancestry that fled the civil war in Spain.