| Trafalgar | |
| Settlement Type: | City neighborhood |
| Subdivision Type: | Country |
| Subdivision Name: | Spain |
| Subdivision Type1: | Region |
| Subdivision Name1: | Community of Madrid |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Madrid |
| Subdivision Type3: | District |
| Subdivision Name3: | Chamberí |
| Area Total Km2: | 0.611950 |
| Population Total: | 24,748 |
| Population As Of: | 2021 |
| Population Density Km2: | auto |
Trafalgar is an administrative neighborhood (Spanish; Castilian: barrio) of Madrid belonging to the district of Chamberí. It has an area of .[1] As of 1 February 2021, it has a population of 24,748.[2]