| Pornic | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Population Demonym: | Pornicais (French) |
| Image Coat Of Arms: | Blason ville fr Pornic (Loire-Atlantique).svg |
| Arrondissement: | Saint-Nazaire |
| Canton: | Pornic |
| Subdivisions: | Sainte-Marie-sur-Mer, Clion-sur-Mer |
| Insee: | 44131 |
| Postal Code: | 44210 |
| Mayor: | Jean-Michel Brard[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pornic Agglo Pays de Retz |
| Coordinates: | 47.1167°N -2.1°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 31 |
| Area Km2: | 94.2 |
Pornic (in French pronounced as /pɔʁnik/; Pornizh in Breton, Port-Nitz in Gallo) is a commune in the Loire-Atlantique department in western France.
In 1973 the commune of Pornic absorbed the neighbouring municipalities of Sainte-Marie-sur-Mer and Clion-sur-Mer.
The municipality launched a linguistic plan through Ya d'ar brezhoneg on 1 March 2006.
The Pornic train station is served by trains to Nantes and Sainte-Pazanne.
Pornic has a Csb type climate (Mediterranean with mild summers). The highest temperature recorded in Pornic is 38.1 °C on 4 August 2003, while the lowest temperature was -11.2 °C on 2 February 1986. Pornic's average temperature between 1971 and 2000 is approximately 12.8 °C.