Saint-Herblain (French pronunciation: [sɛ̃t‿ɛʁblɛ̃] ⓘ; Gallo: Saent-Erbelaen, Breton: Sant-Ervlan, pronounced [ˈsãnt ɛrvlãn]) is a commune in the Loire-Atlantique department, administrative region of Pays de la Loire, France.

[3] It is the largest suburb of the city of Nantes, and lies adjacent to its west side.

The commune is named after the 7th-century AD Saint Hermeland (French: Herblain and other names; Hermelandus in Breton and Latin), abbot and confessor under the Frankish king Chlothar III.

The school network in Breton Diwan has opened a college in Saint-Herblain, the first in the area.

The Gare de Basse-Indre-Saint-Herblain railway station is served by regional trains between Nantes and Saint-Nazaire.