| Sant Miquel de Fluvià | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Province of Girona#Spain |
| Pushpin Map Caption: | Location in Catalonia |
| Coordinates: | 42.177°N 2.993°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Girona |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Alt Empordà |
| Leader Title: | Mayor |
| Leader Name: | Àngel Posas Agulló (2015)[1] |
| Unit Pref: | Metric |
| Area Footnotes: | [2] |
| Area Total Km2: | 3.5 |
| Population Density Km2: | auto |
Sant Miquel de Fluvià (in Catalan; Valencian pronounced as /ˈsam miˈkɛl də fluβiˈa/) is a municipality in the comarca of Alt Empordà, Girona, Catalonia, Spain. The original part of the village lies just to the north of the river Fluvià and is dominated by the tower of an 11th-century church that was originally part of a Benedictine monastery that has since disappeared.
The village has expanded northwards in modern times. It has a railway station on the main line between Figueres and Girona. A good number of the inhabitants trace their origins to Andalucia in southern Spain because migrant workers employed on railway construction settled there. The Falgàs sausage factory in the village provides local employment.