Lake St. Catherine (Louisiana)
General data
- Name: Lake St. Catherine (Louisiana)
- Water system: Gulf of Mexico
- Water type: Natural lake
- Progression: Chef Menteur Pass -> Lake Borgne -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Subtropical
- Continents: North America
- Countries: United States of America
Lake St. Catherine (French: Lac Sainte-Catherine) is a brackish-water lake that is located in eastern Orleans Parish, within the city limits of New Orleans, between Lake Pontchartrain and Lake Borgne in Louisiana. Between Lake St. Catherine and Lake Borgne was the original Town of Lake Catherine. Established between Unknown Pass and Miller's Ditch, it was settled for railroad workers, trappers, hunters and fishermen.