Saint Martinville
- Country: United States
- State: Louisiana
- Population: 6,095 (2016)
- Latitude: 30° 7.5' N (30.1252°)
- Longitude: 91° 50' W (-91.83345°)
- Elevation: 7 m/23 ft. above sea level
- Time zone: America/Chicago (UTC -06:00); DST observed (UTC -05:00)
- Alternate names: Le Poste Des Attakapas, Petit Paris, Saint Martinsville, St. Martinville, St. Martinsville