Saint-Romuald is a district within the Les Chutes-de-la-Chaudière-Est borough of Lévis, Quebec, Canada, located on the south shore of the Saint Lawrence River across from Quebec City. The district was formerly a town (Saint-Romuald d'Etchemin), but was amalgamated with Lévis on January 1, 2002.

The largest oil refinery in eastern Canada, owned by Valero Energy Corporation, is located in Saint-Romuald.

The Quebec Bridge connects Saint-Romuald to Sainte-Foy, a district of Quebec City.

The Etchemin River flows into the Saint Lawrence River at Saint-Romuald.

The district is named after a Roman Catholic parish, which is named in honour of Saint Romuald (c. 951–June 19, 1027), the founder of the Camaldolese order. The church is described as neo-classical in style and was built in 1855 by Joseph and Louis Larose.

In 1902, Cisterian nuns from Bonneval Abbey in Aveyron, France; founded a branch in Saint-Romuald, creating the Bon Conseil Abbey (French: Notre-Dame du Bon Conseil), where they made chocolate. In 2001, the abbey moved to Saint-Benoît-Labre.

According to the Canada 2006 Census:

• Population: 11,633
• % Change (2001–06): +7.3
• Dwellings: 5,568
• Area (km): 17.16 km
• Density (persons per km): 677.9

• Gérard Bolduc, founder of the Quebec International Pee-Wee Hockey Tournament
• Ariane Moffatt, singer-songwriter

46°45′21″N 71°14′16″W / 46.75583°N 71.23778°W / 46.75583; -71.23778 (Saint-Romuald, Quebecs)